13317155 has 4 divisors (see below), whose sum is σ = 15980592. Its totient is φ = 10653720.

The previous prime is 13317133. The next prime is 13317191. The reversal of 13317155 is 55171331.

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

It is not a de Polignac number, because 13317155 - 2⁶ = 13317091 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1331711 + ... + 1331720.

It is an arithmetic number, because the mean of its divisors is an integer number (3995148).

Almost surely, 2^13317155 is an apocalyptic number.

13317155 is a deficient number, since it is larger than the sum of its proper divisors (2663437).

13317155 is an equidigital number, since it uses as much as digits as its factorization.

13317155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663436.

The product of its digits is 1575, while the sum is 26.

The square root of 13317155 is about 3649.2677347654. The cubic root of 13317155 is about 237.0302738067.

Adding to 13317155 its reverse (55171331), we get a palindrome (68488486).

The spelling of 13317155 in words is "thirteen million, three hundred seventeen thousand, one hundred fifty-five".