13161136 has 10 divisors (see below), whose sum is σ = 25499732. Its totient is φ = 6580560.

The previous prime is 13161133. The next prime is 13161149. The reversal of 13161136 is 63116131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13161131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411270 + ... + 411301.

Almost surely, 2^13161136 is an apocalyptic number.

13161136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13161136 is a deficient number, since it is larger than the sum of its proper divisors (12338596).

13161136 is an equidigital number, since it uses as much as digits as its factorization.

13161136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822579 (or 822573 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 13161136 is about 3627.8280003330. The cubic root of 13161136 is about 236.1009813950.

Adding to 13161136 its reverse (63116131), we get a palindrome (76277267).

The spelling of 13161136 in words is "thirteen million, one hundred sixty-one thousand, one hundred thirty-six".