157238107 has 12 divisors (see below), whose sum is σ = 175761984. Its totient is φ = 140456160.

The previous prime is 157238093. The next prime is 157238119. The reversal of 157238107 is 701832751.

It is not a de Polignac number, because 157238107 - 2¹¹ = 157236059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157238407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9768 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (14646832).

Almost surely, 2^157238107 is an apocalyptic number.

157238107 is a deficient number, since it is larger than the sum of its proper divisors (18523877).

157238107 is a wasteful number, since it uses less digits than its factorization.

157238107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30070 (or 30057 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 157238107 is about 12539.4619900536. The cubic root of 157238107 is about 539.7416539713.

The spelling of 157238107 in words is "one hundred fifty-seven million, two hundred thirty-eight thousand, one hundred seven".