157123107 has 12 divisors (see below), whose sum is σ = 230343880. Its totient is φ = 103184928.

The previous prime is 157123079. The next prime is 157123121. The reversal of 157123107 is 701321751.

It is a happy number.

It is not a de Polignac number, because 157123107 - 2¹⁴ = 157106723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157123147) 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, 129682 + ... + 130887.

Almost surely, 2^157123107 is an apocalyptic number.

157123107 is a deficient number, since it is larger than the sum of its proper divisors (73220773).

157123107 is a wasteful number, since it uses less digits than its factorization.

157123107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260642 (or 260639 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 157123107 is about 12534.8756276239. The cubic root of 157123107 is about 539.6100373852.

Adding to 157123107 its reverse (701321751), we get a palindrome (858444858).

The spelling of 157123107 in words is "one hundred fifty-seven million, one hundred twenty-three thousand, one hundred seven".