156860487 has 12 divisors (see below), whose sum is σ = 258944400. Its totient is φ = 89634528.

The previous prime is 156860471. The next prime is 156860489. The reversal of 156860487 is 784068651.

It is a happy number.

156860487 is a `hidden beast` number, since 1 + 568 + 6 + 0 + 4 + 87 = 666.

It is not a de Polignac number, because 156860487 - 2⁴ = 156860471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156860489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1244862 + ... + 1244987.

It is an arithmetic number, because the mean of its divisors is an integer number (21578700).

Almost surely, 2^156860487 is an apocalyptic number.

156860487 is a deficient number, since it is larger than the sum of its proper divisors (102083913).

156860487 is a wasteful number, since it uses less digits than its factorization.

156860487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489862 (or 2489859 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 156860487 is about 12524.3956740435. The cubic root of 156860487 is about 539.3092299097.

The spelling of 156860487 in words is "one hundred fifty-six million, eight hundred sixty thousand, four hundred eighty-seven".