1451137656 has 16 divisors (see below), whose sum is σ = 3627844200. Its totient is φ = 483712544.

The previous prime is 1451137637. The next prime is 1451137717. The reversal of 1451137656 is 6567311541.

It is a super-2 number, since 2×1451137656² = 4211600993322348672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30232011 + ... + 30232058.

Almost surely, 2^1451137656 is an apocalyptic number.

It is an amenable number.

1451137656 is an abundant number, since it is smaller than the sum of its proper divisors (2176706544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451137656 is a wasteful number, since it uses less digits than its factorization.

1451137656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60464078 (or 60464074 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 1451137656 is about 38093.8007555035. The cubic root of 1451137656 is about 1132.1471317537.

The spelling of 1451137656 in words is "one billion, four hundred fifty-one million, one hundred thirty-seven thousand, six hundred fifty-six".