15115155 has 32 divisors (see below), whose sum is σ = 26673408. Its totient is φ = 7248000.

The previous prime is 15115103. The next prime is 15115169. The reversal of 15115155 is 55151151.

It is not a de Polignac number, because 15115155 - 2⁷ = 15115027 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16212 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (833544).

Almost surely, 2^15115155 is an apocalyptic number.

15115155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15115155 is a deficient number, since it is larger than the sum of its proper divisors (11558253).

15115155 is a wasteful number, since it uses less digits than its factorization.

15115155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027.

The product of its digits is 625, while the sum is 24.

The square root of 15115155 is about 3887.8213693533. The cubic root of 15115155 is about 247.2507029615.

It can be divided in two parts, 1511 and 5155, that added together give a palindrome (6666).

The spelling of 15115155 in words is "fifteen million, one hundred fifteen thousand, one hundred fifty-five".