13504136 has 16 divisors (see below), whose sum is σ = 26653200. Its totient is φ = 6396624.

The previous prime is 13504109. The next prime is 13504157. The reversal of 13504136 is 63140531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44270 + ... + 44573.

It is an arithmetic number, because the mean of its divisors is an integer number (1665825).

Almost surely, 2^13504136 is an apocalyptic number.

It is an amenable number.

13504136 is a deficient number, since it is larger than the sum of its proper divisors (13149064).

13504136 is a wasteful number, since it uses less digits than its factorization.

13504136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88868 (or 88864 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13504136 is about 3674.7974093819. The cubic root of 13504136 is about 238.1344719448.

Adding to 13504136 its reverse (63140531), we get a palindrome (76644667).

The spelling of 13504136 in words is "thirteen million, five hundred four thousand, one hundred thirty-six".