The Number 61: Properties and Meanings

61 is a Prime Number.

61 can be Partitioned 31 times with each term no larger than 2.

61 can be Partitioned 341 times with each term no larger than 3.

61 can be Partitioned 1991 times with each term no larger than 4.

61 is a Centered Square Number.

61 is a Centered Hexagonal Number.

61 is a Centered Decagonal Number.

61 is a Centered 20-gonal Number.

There are 61 abstract groups of order 1464. Note that 61 divides 1464

Along with atomic number 43, atomic number 61 is the only atomic number smaller than 83 who's Chemical Element (Promethium) is not stable.

In Humans 61 codons specify individual amino acids.

The average gestation period of a dog is 61 days.

Film: 61* Bob Dylan wrote a famous song called Highway 61.

The 61st book in the King James Version of the Bible (II Peter) includes 61 verses.

The official length of an ice hockey rink must be no more than 61 meters.

In the tiny hamlet of Pinghan, nestled deep among a stand of limestone hills in a remote region of southwestern China, locals honor an old, national tradition of buying a coffin at the age of 61.

The Year 61 AD

In the year 61 AD the Druidic stronghold of Angelsey in north Wales was attacked and destroyed by Suetonius Paulinus.