15155155 has 4 divisors (see below), whose sum is σ = 18186192. Its totient is φ = 12124120.

The previous prime is 15155131. The next prime is 15155167. The reversal of 15155155 is 55155151.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15155155 - 2¹¹ = 15153107 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515511 + ... + 1515520.

It is an arithmetic number, because the mean of its divisors is an integer number (4546548).

Almost surely, 2^15155155 is an apocalyptic number.

15155155 is a deficient number, since it is larger than the sum of its proper divisors (3031037).

15155155 is an equidigital number, since it uses as much as digits as its factorization.

15155155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031036.

The product of its digits is 3125, while the sum is 28.

The square root of 15155155 is about 3892.9622397347. The cubic root of 15155155 is about 247.4686148687.

It can be divided in two parts, 1515 and 5155, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 15155155 in words is "fifteen million, one hundred fifty-five thousand, one hundred fifty-five".