13155436 has 24 divisors (see below), whose sum is σ = 26562816. Its totient is φ = 5584080.

The previous prime is 13155427. The next prime is 13155437. The reversal of 13155436 is 63455131.

13155436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13155437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1106784).

Almost surely, 2^13155436 is an apocalyptic number.

It is an amenable number.

13155436 is an abundant number, since it is smaller than the sum of its proper divisors (13407380).

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

13155436 is a wasteful number, since it uses less digits than its factorization.

13155436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509 (or 4507 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 13155436 is about 3627.0423212309. The cubic root of 13155436 is about 236.0668918877.

The spelling of 13155436 in words is "thirteen million, one hundred fifty-five thousand, four hundred thirty-six".