157879225 has 27 divisors (see below), whose sum is σ = 228368847. Its totient is φ = 107958480.

The previous prime is 157879223. The next prime is 157879229. The reversal of 157879225 is 522978751.

It is a happy number.

The square root of 157879225 is 12565.

It is a perfect power (a square), and thus also a powerful number.

157879225 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 only one way, i.e., 56836521 + 101042704 = 7539^2 + 10052^2 .

It is not a de Polignac number, because 157879225 - 2¹ = 157879223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157879223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 439596 + ... + 439954.

Almost surely, 2^157879225 is an apocalyptic number.

157879225 is the 12565-th square number.

157879225 is the 6283-rd centered octagonal number.

It is an amenable number.

157879225 is a deficient number, since it is larger than the sum of its proper divisors (70489622).

157879225 is an frugal number, since it uses more digits than its factorization.

157879225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 371 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The cubic root of 157879225 is about 540.4742347481.

The spelling of 157879225 in words is "one hundred fifty-seven million, eight hundred seventy-nine thousand, two hundred twenty-five".