157156987 has 12 divisors (see below), whose sum is σ = 170777064. Its totient is φ = 144555840.

The previous prime is 157156981. The next prime is 157156997. The reversal of 157156987 is 789651751.

It is a happy number.

It is not a de Polignac number, because 157156987 - 2⁷ = 157156859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157156987.

It is not an unprimeable number, because it can be changed into a prime (157156981) 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, 51412 + ... + 54382.

It is an arithmetic number, because the mean of its divisors is an integer number (14231422).

Almost surely, 2^157156987 is an apocalyptic number.

157156987 is a deficient number, since it is larger than the sum of its proper divisors (13620077).

157156987 is a wasteful number, since it uses less digits than its factorization.

157156987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310 (or 3297 counting only the distinct ones).

The product of its digits is 529200, while the sum is 49.

The square root of 157156987 is about 12536.2269842246. The cubic root of 157156987 is about 539.6488194471.

The spelling of 157156987 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, nine hundred eighty-seven".