13491168 has 24 divisors (see below), whose sum is σ = 35414568. Its totient is φ = 4497024.

The previous prime is 13491161. The next prime is 13491211. The reversal of 13491168 is 86119431.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×13491168² = 364023228008448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13491161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70171 + ... + 70362.

It is an arithmetic number, because the mean of its divisors is an integer number (1475607).

Almost surely, 2^13491168 is an apocalyptic number.

It is an amenable number.

13491168 is an abundant number, since it is smaller than the sum of its proper divisors (21923400).

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

13491168 is a wasteful number, since it uses less digits than its factorization.

13491168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140546 (or 140538 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 13491168 is about 3673.0325345687. The cubic root of 13491168 is about 238.0582208153.

The spelling of 13491168 in words is "thirteen million, four hundred ninety-one thousand, one hundred sixty-eight".