13589172 has 18 divisors (see below), whose sum is σ = 34350498. Its totient is φ = 4529712.

The previous prime is 13589119. The next prime is 13589179. The reversal of 13589172 is 27198531.

13589172 is a `hidden beast` number, since 1 + 3 + 589 + 1 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11532816 + 2056356 = 3396^2 + 1434^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 377477 = 13589172 / (1 + 3 + 5 + 8 + 9 + 1 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13589179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188703 + ... + 188774.

It is an arithmetic number, because the mean of its divisors is an integer number (1908361).

Almost surely, 2^13589172 is an apocalyptic number.

13589172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13589172 is an abundant number, since it is smaller than the sum of its proper divisors (20761326).

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

13589172 is a wasteful number, since it uses less digits than its factorization.

13589172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377487 (or 377482 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 13589172 is about 3686.3494137154. The cubic root of 13589172 is about 238.6332733502.

The spelling of 13589172 in words is "thirteen million, five hundred eighty-nine thousand, one hundred seventy-two".