13161864 has 32 divisors (see below), whose sum is σ = 33153120. Its totient is φ = 4354176.

The previous prime is 13161857. The next prime is 13161881. The reversal of 13161864 is 46816131.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 5289.

It is an arithmetic number, because the mean of its divisors is an integer number (1036035).

Almost surely, 2^13161864 is an apocalyptic number.

It is an amenable number.

13161864 is an abundant number, since it is smaller than the sum of its proper divisors (19991256).

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

13161864 is a wasteful number, since it uses less digits than its factorization.

13161864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149 (or 4145 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 13161864 is about 3627.9283344631. The cubic root of 13161864 is about 236.1053345740.

Adding to 13161864 its reverse (46816131), we get a palindrome (59977995).

The spelling of 13161864 in words is "thirteen million, one hundred sixty-one thousand, eight hundred sixty-four".