1056690631 has 2 divisors, whose sum is σ = 1056690632. Its totient is φ = 1056690630.

The previous prime is 1056690611. The next prime is 1056690667. The reversal of 1056690631 is 1360966501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1056690631 - 2¹³ = 1056682439 is a prime.

It is a super-2 number, since 2×1056690631² = 2233190179286356322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056690611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528345315 + 528345316.

It is an arithmetic number, because the mean of its divisors is an integer number (528345316).

Almost surely, 2^1056690631 is an apocalyptic number.

1056690631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056690631 is an equidigital number, since it uses as much as digits as its factorization.

1056690631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 1056690631 is about 32506.7782316242. The cubic root of 1056690631 is about 1018.5506234545.

The spelling of 1056690631 in words is "one billion, fifty-six million, six hundred ninety thousand, six hundred thirty-one".