2965631281 has 2 divisors, whose sum is σ = 2965631282. Its totient is φ = 2965631280.

The previous prime is 2965631237. The next prime is 2965631297. The reversal of 2965631281 is 1821365692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2471680656 + 493950625 = 49716^2 + 22225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2965631281 - 2¹⁵ = 2965598513 is a prime.

It is a super-2 number, since 2×2965631281² = 17589937789691401922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2965631231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1482815640 + 1482815641.

It is an arithmetic number, because the mean of its divisors is an integer number (1482815641).

Almost surely, 2^2965631281 is an apocalyptic number.

It is an amenable number.

2965631281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2965631281 is an equidigital number, since it uses as much as digits as its factorization.

2965631281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 2965631281 is about 54457.6099457183. The cubic root of 2965631281 is about 1436.7208177638.

The spelling of 2965631281 in words is "two billion, nine hundred sixty-five million, six hundred thirty-one thousand, two hundred eighty-one".