157723225 has 24 divisors (see below), whose sum is σ = 216995040. Its totient is φ = 112752000.

The previous prime is 157723207. The next prime is 157723231. The reversal of 157723225 is 522327751.

157723225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157723225 - 2¹¹ = 157721177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11365 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (9041460).

Almost surely, 2^157723225 is an apocalyptic number.

It is an amenable number.

157723225 is a deficient number, since it is larger than the sum of its proper divisors (59271815).

157723225 is a wasteful number, since it uses less digits than its factorization.

157723225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9801 (or 9796 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 157723225 is about 12558.7907459277. The cubic root of 157723225 is about 540.2961624146.

The spelling of 157723225 in words is "one hundred fifty-seven million, seven hundred twenty-three thousand, two hundred twenty-five".