157973864 has 16 divisors (see below), whose sum is σ = 300373920. Its totient is φ = 77874160.

The previous prime is 157973863. The next prime is 157973891. The reversal of 157973864 is 468379751.

It is not an unprimeable number, because it can be changed into a prime (157973863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138494 + ... + 139629.

It is an arithmetic number, because the mean of its divisors is an integer number (18773370).

Almost surely, 2^157973864 is an apocalyptic number.

It is an amenable number.

157973864 is a deficient number, since it is larger than the sum of its proper divisors (142400056).

157973864 is a wasteful number, since it uses less digits than its factorization.

157973864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278200 (or 278196 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 157973864 is about 12568.7654127205. The cubic root of 157973864 is about 540.5822069952.

The spelling of 157973864 in words is "one hundred fifty-seven million, nine hundred seventy-three thousand, eight hundred sixty-four".