13155224 has 16 divisors (see below), whose sum is σ = 24705000. Its totient is φ = 6567232.

The previous prime is 13155223. The next prime is 13155281. The reversal of 13155224 is 42255131.

13155224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13155224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8027 + ... + 9525.

Almost surely, 2^13155224 is an apocalyptic number.

It is an amenable number.

13155224 is a deficient number, since it is larger than the sum of its proper divisors (11549776).

13155224 is a wasteful number, since it uses less digits than its factorization.

13155224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2598 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 13155224 is about 3627.0130961991. The cubic root of 13155224 is about 236.0656238074.

It can be divided in two parts, 131 and 55224, that added together give a palindrome (55355).

The spelling of 13155224 in words is "thirteen million, one hundred fifty-five thousand, two hundred twenty-four".