157204923 has 8 divisors (see below), whose sum is σ = 211530000. Its totient is φ = 103841568.

The previous prime is 157204921. The next prime is 157204939. The reversal of 157204923 is 329402751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157204923 - 2¹ = 157204921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157204921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240048 + ... + 240701.

It is an arithmetic number, because the mean of its divisors is an integer number (26441250).

Almost surely, 2^157204923 is an apocalyptic number.

157204923 is a deficient number, since it is larger than the sum of its proper divisors (54325077).

157204923 is a wasteful number, since it uses less digits than its factorization.

157204923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480861.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 157204923 is about 12538.1387374682. The cubic root of 157204923 is about 539.7036817361.

The spelling of 157204923 in words is "one hundred fifty-seven million, two hundred four thousand, nine hundred twenty-three".