13551156 has 36 divisors (see below), whose sum is σ = 35093604. Its totient is φ = 4406400.

The previous prime is 13551151. The next prime is 13551157. The reversal of 13551156 is 65115531.

13551156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4040100 + 9511056 = 2010^2 + 3084^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13551151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3115 + ... + 6066.

Almost surely, 2^13551156 is an apocalyptic number.

It is an amenable number.

13551156 is an abundant number, since it is smaller than the sum of its proper divisors (21542448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13551156 is a wasteful number, since it uses less digits than its factorization.

13551156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232 (or 9227 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 13551156 is about 3681.1894816757. The cubic root of 13551156 is about 238.4105382862.

Adding to 13551156 its reverse (65115531), we get a palindrome (78666687).

The spelling of 13551156 in words is "thirteen million, five hundred fifty-one thousand, one hundred fifty-six".