13315155 has 32 divisors (see below), whose sum is σ = 24503808. Its totient is φ = 6048000.

The previous prime is 13315123. The next prime is 13315177. The reversal of 13315155 is 55151331.

13315155 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 13315155 - 2⁵ = 13315123 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21855 + ... + 22455.

It is an arithmetic number, because the mean of its divisors is an integer number (765744).

Almost surely, 2^13315155 is an apocalyptic number.

13315155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13315155 is a deficient number, since it is larger than the sum of its proper divisors (11188653).

13315155 is a wasteful number, since it uses less digits than its factorization.

13315155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its digits is 1125, while the sum is 24.

The square root of 13315155 is about 3648.9936968978. The cubic root of 13315155 is about 237.0184073011.

Adding to 13315155 its reverse (55151331), we get a palindrome (68466486).

The spelling of 13315155 in words is "thirteen million, three hundred fifteen thousand, one hundred fifty-five".