157578125 has 16 divisors (see below), whose sum is σ = 197069808. Its totient is φ = 126000000.

The previous prime is 157578107. The next prime is 157578137. The reversal of 157578125 is 521875751.

157578125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 143304841 + 14273284 = 11971^2 + 3778^2 .

It is not a de Polignac number, because 157578125 - 2⁸ = 157577869 is a prime.

It is a Duffinian 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, 77117 + ... + 79133.

It is an arithmetic number, because the mean of its divisors is an integer number (12316863).

Almost surely, 2^157578125 is an apocalyptic number.

It is an amenable number.

157578125 is a deficient number, since it is larger than the sum of its proper divisors (39491683).

157578125 is an frugal number, since it uses more digits than its factorization.

157578125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2022 counting only the distinct ones).

The product of its digits is 98000, while the sum is 41.

The square root of 157578125 is about 12553.0125866264. The cubic root of 157578125 is about 540.1304268858.

The spelling of 157578125 in words is "one hundred fifty-seven million, five hundred seventy-eight thousand, one hundred twenty-five".