15147138 has 16 divisors (see below), whose sum is σ = 30375360. Its totient is φ = 5035536.

The previous prime is 15147109. The next prime is 15147169. The reversal of 15147138 is 83174151.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (1898460).

Almost surely, 2^15147138 is an apocalyptic number.

15147138 is an abundant number, since it is smaller than the sum of its proper divisors (15228222).

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

15147138 is a wasteful number, since it uses less digits than its factorization.

15147138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761.

The product of its digits is 3360, while the sum is 30.

The square root of 15147138 is about 3891.9324249015. The cubic root of 15147138 is about 247.4249706252.

It can be divided in two parts, 15 and 147138, that added together give a triangular number (147153 = T₅₄₂).

The spelling of 15147138 in words is "fifteen million, one hundred forty-seven thousand, one hundred thirty-eight".