13536397 has 12 divisors (see below), whose sum is σ = 16432416. Its totient is φ = 11097240.

The previous prime is 13536371. The next prime is 13536409. The reversal of 13536397 is 79363531.

It is a happy number.

13536397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13536397 - 2¹⁵ = 13503629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13536337) 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, 4879 + ... + 7132.

It is an arithmetic number, because the mean of its divisors is an integer number (1369368).

Almost surely, 2^13536397 is an apocalyptic number.

It is an amenable number.

13536397 is a deficient number, since it is larger than the sum of its proper divisors (2896019).

13536397 is a wasteful number, since it uses less digits than its factorization.

13536397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12048 (or 12041 counting only the distinct ones).

The product of its digits is 51030, while the sum is 37.

The square root of 13536397 is about 3679.1842845935. The cubic root of 13536397 is about 238.3239533151.

It can be divided in two parts, 135363 and 97, that added together give a triangular number (135460 = T₅₂₀).

The spelling of 13536397 in words is "thirteen million, five hundred thirty-six thousand, three hundred ninety-seven".