13308136 has 8 divisors (see below), whose sum is σ = 24952770. Its totient is φ = 6654064.

The previous prime is 13308133. The next prime is 13308157. The reversal of 13308136 is 63180331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 988036 = 3510^2 + 994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13308136.

It is not an unprimeable number, because it can be changed into a prime (13308131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831751 + ... + 831766.

Almost surely, 2^13308136 is an apocalyptic number.

It is an amenable number.

13308136 is a deficient number, since it is larger than the sum of its proper divisors (11644634).

13308136 is a wasteful number, since it uses less digits than its factorization.

13308136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663523 (or 1663519 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13308136 is about 3648.0317981070. The cubic root of 13308136 is about 236.9767523946.

Adding to 13308136 its reverse (63180331), we get a palindrome (76488467).

The spelling of 13308136 in words is "thirteen million, three hundred eight thousand, one hundred thirty-six".