13331156 has 12 divisors (see below), whose sum is σ = 23428020. Its totient is φ = 6637440.

The previous prime is 13331119. The next prime is 13331167. The reversal of 13331156 is 65113331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5856400 + 7474756 = 2420^2 + 2734^2 .

It is a super-3 number, since 3×13331156³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5951 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (1952335).

Almost surely, 2^13331156 is an apocalyptic number.

It is an amenable number.

13331156 is a deficient number, since it is larger than the sum of its proper divisors (10096864).

13331156 is a wasteful number, since it uses less digits than its factorization.

13331156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074 (or 14072 counting only the distinct ones).

The product of its digits is 810, while the sum is 23.

The square root of 13331156 is about 3651.1855608829. The cubic root of 13331156 is about 237.1133120261.

Adding to 13331156 its reverse (65113331), we get a palindrome (78444487).

The spelling of 13331156 in words is "thirteen million, three hundred thirty-one thousand, one hundred fifty-six".