13591172 has 24 divisors (see below), whose sum is σ = 27847680. Its totient is φ = 5682240.

The previous prime is 13591157. The next prime is 13591217. The reversal of 13591172 is 27119531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4772 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (1160320).

Almost surely, 2^13591172 is an apocalyptic number.

It is an amenable number.

13591172 is an abundant number, since it is smaller than the sum of its proper divisors (14256508).

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

13591172 is a wasteful number, since it uses less digits than its factorization.

13591172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11891 (or 11889 counting only the distinct ones).

The product of its digits is 1890, while the sum is 29.

The square root of 13591172 is about 3686.6206748186. The cubic root of 13591172 is about 238.6449798063.

The spelling of 13591172 in words is "thirteen million, five hundred ninety-one thousand, one hundred seventy-two".