13491612 has 36 divisors (see below), whose sum is σ = 35282520. Its totient is φ = 4341792.

The previous prime is 13491607. The next prime is 13491613. The reversal of 13491612 is 21619431.

13491612 is a `hidden beast` number, since 1 + 3 + 49 + 1 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13491613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5418 + ... + 7505.

It is an arithmetic number, because the mean of its divisors is an integer number (980070).

Almost surely, 2^13491612 is an apocalyptic number.

13491612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13491612 is an abundant number, since it is smaller than the sum of its proper divisors (21790908).

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

13491612 is a wasteful number, since it uses less digits than its factorization.

13491612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12962 (or 12957 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 13491612 is about 3673.0929745924. The cubic root of 13491612 is about 238.0608323186.

The spelling of 13491612 in words is "thirteen million, four hundred ninety-one thousand, six hundred twelve".