10515155 has 24 divisors (see below), whose sum is σ = 14823648. Its totient is φ = 7139328.

The previous prime is 10515133. The next prime is 10515173. The reversal of 10515155 is 55151501.

It is a happy number.

It is not a de Polignac number, because 10515155 - 2¹⁶ = 10449619 is a prime.

It is a super-2 number, since 2×10515155² = 221136969348050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10515155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40787 + ... + 41043.

It is an arithmetic number, because the mean of its divisors is an integer number (617652).

Almost surely, 2^10515155 is an apocalyptic number.

10515155 is a deficient number, since it is larger than the sum of its proper divisors (4308493).

10515155 is a wasteful number, since it uses less digits than its factorization.

10515155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 10515155 is about 3242.7079732841. The cubic root of 10515155 is about 219.0812581151.

Adding to 10515155 its reverse (55151501), we get a palindrome (65666656).

The spelling of 10515155 in words is "ten million, five hundred fifteen thousand, one hundred fifty-five".