15147172 has 12 divisors (see below), whose sum is σ = 26770716. Its totient is φ = 7498400.

The previous prime is 15147169. The next prime is 15147217. The reversal of 15147172 is 27174151.

It can be written as a sum of positive squares in 2 ways, for example, as 9884736 + 5262436 = 3144^2 + 2294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15147172.

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, 18343 + ... + 19150.

It is an arithmetic number, because the mean of its divisors is an integer number (2230893).

Almost surely, 2^15147172 is an apocalyptic number.

It is an amenable number.

15147172 is a deficient number, since it is larger than the sum of its proper divisors (11623544).

15147172 is a wasteful number, since it uses less digits than its factorization.

15147172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37598 (or 37596 counting only the distinct ones).

The product of its digits is 1960, while the sum is 28.

The square root of 15147172 is about 3891.9367929092. The cubic root of 15147172 is about 247.4251557525.

The spelling of 15147172 in words is "fifteen million, one hundred forty-seven thousand, one hundred seventy-two".