157923207 has 24 divisors (see below), whose sum is σ = 253588608. Its totient is φ = 94046400.

The previous prime is 157923179. The next prime is 157923229. The reversal of 157923207 is 702329751.

It is not a de Polignac number, because 157923207 - 2¹⁰ = 157922183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157923107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18144 + ... + 25397.

It is an arithmetic number, because the mean of its divisors is an integer number (10566192).

Almost surely, 2^157923207 is an apocalyptic number.

157923207 is a deficient number, since it is larger than the sum of its proper divisors (95665401).

157923207 is a wasteful number, since it uses less digits than its factorization.

157923207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43591 (or 43588 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 157923207 is about 12566.7500571946. The cubic root of 157923207 is about 540.5244185320.

The spelling of 157923207 in words is "one hundred fifty-seven million, nine hundred twenty-three thousand, two hundred seven".