13561372 has 12 divisors (see below), whose sum is σ = 25889976. Its totient is φ = 6164240.

The previous prime is 13561369. The next prime is 13561381. The reversal of 13561372 is 27316531.

It is a self number, because there is not a number n which added to its sum of digits gives 13561372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154063 + ... + 154150.

It is an arithmetic number, because the mean of its divisors is an integer number (2157498).

Almost surely, 2^13561372 is an apocalyptic number.

It is an amenable number.

13561372 is a deficient number, since it is larger than the sum of its proper divisors (12328604).

13561372 is a wasteful number, since it uses less digits than its factorization.

13561372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308228 (or 308226 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 13561372 is about 3682.5768152206. The cubic root of 13561372 is about 238.4704345356.

The spelling of 13561372 in words is "thirteen million, five hundred sixty-one thousand, three hundred seventy-two".