157931122 has 16 divisors (see below), whose sum is σ = 254368512. Its totient is φ = 73272640.

The previous prime is 157931119. The next prime is 157931153. The reversal of 157931122 is 221139751.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30298 + ... + 35125.

It is an arithmetic number, because the mean of its divisors is an integer number (15898032).

Almost surely, 2^157931122 is an apocalyptic number.

157931122 is a deficient number, since it is larger than the sum of its proper divisors (96437390).

157931122 is a wasteful number, since it uses less digits than its factorization.

157931122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65513.

The product of its digits is 3780, while the sum is 31.

The square root of 157931122 is about 12567.0649715835. The cubic root of 157931122 is about 540.5334486156.

The spelling of 157931122 in words is "one hundred fifty-seven million, nine hundred thirty-one thousand, one hundred twenty-two".