10513531 has 12 divisors (see below), whose sum is σ = 12766288. Its totient is φ = 8479872.

The previous prime is 10513523. The next prime is 10513537. The reversal of 10513531 is 13531501.

10513531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10513531 - 2³ = 10513523 is a prime.

It is a super-2 number, since 2×10513531² = 221068668175922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10513499 and 10513508.

It is not an unprimeable number, because it can be changed into a prime (10513537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576 + ... + 4621.

Almost surely, 2^10513531 is an apocalyptic number.

10513531 is a deficient number, since it is larger than the sum of its proper divisors (2252757).

10513531 is an equidigital number, since it uses as much as digits as its factorization.

10513531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5221 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 10513531 is about 3242.4575556204. The cubic root of 10513531 is about 219.0699789572.

The spelling of 10513531 in words is "ten million, five hundred thirteen thousand, five hundred thirty-one".