387942125 has 16 divisors (see below), whose sum is σ = 512634096. Its totient is φ = 292096000.

The previous prime is 387942067. The next prime is 387942143. The reversal of 387942125 is 521249783.

It can be written as a sum of positive squares in 8 ways, for example, as 10883401 + 377058724 = 3299^2 + 19418^2 .

It is not a de Polignac number, because 387942125 - 2²⁴ = 371164909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89156 + ... + 93405.

It is an arithmetic number, because the mean of its divisors is an integer number (32039631).

Almost surely, 2^387942125 is an apocalyptic number.

It is an amenable number.

387942125 is a deficient number, since it is larger than the sum of its proper divisors (124691971).

387942125 is a wasteful number, since it uses less digits than its factorization.

387942125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182593 (or 182583 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 387942125 is about 19696.2464698226. The cubic root of 387942125 is about 729.3270366537.

The spelling of 387942125 in words is "three hundred eighty-seven million, nine hundred forty-two thousand, one hundred twenty-five".