10513139 has 16 divisors (see below), whose sum is σ = 13504512. Its totient is φ = 7954848.

The previous prime is 10513127. The next prime is 10513141. The reversal of 10513139 is 93131501.

10513139 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10513139 - 2⁸ = 10512883 is a prime.

It is a super-2 number, since 2×10513139² = 221052183266642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (10513169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419 + ... + 4604.

It is an arithmetic number, because the mean of its divisors is an integer number (844032).

Almost surely, 2^10513139 is an apocalyptic number.

10513139 is a deficient number, since it is larger than the sum of its proper divisors (2991373).

10513139 is a wasteful number, since it uses less digits than its factorization.

10513139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 10513139 is about 3242.3971070799. The cubic root of 10513139 is about 219.0672562278.

The spelling of 10513139 in words is "ten million, five hundred thirteen thousand, one hundred thirty-nine".