15372945 has 48 divisors (see below), whose sum is σ = 31299840. Its totient is φ = 6832512.

The previous prime is 15372941. The next prime is 15372971. The reversal of 15372945 is 54927351.

It is not a de Polignac number, because 15372945 - 2² = 15372941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15372941) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10996 + ... + 12314.

It is an arithmetic number, because the mean of its divisors is an integer number (652080).

Almost surely, 2^15372945 is an apocalyptic number.

15372945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15372945 is an abundant number, since it is smaller than the sum of its proper divisors (15926895).

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

15372945 is a wasteful number, since it uses less digits than its factorization.

15372945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1371 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 15372945 is about 3920.8347325538. The cubic root of 15372945 is about 248.6484126819.

The spelling of 15372945 in words is "fifteen million, three hundred seventy-two thousand, nine hundred forty-five".