156878012 has 12 divisors (see below), whose sum is σ = 275632056. Its totient is φ = 78126000.

The previous prime is 156877999. The next prime is 156878063. The reversal of 156878012 is 210878651.

156878012 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156878012² = 49221421298144288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77123 + ... + 79130.

It is an arithmetic number, because the mean of its divisors is an integer number (22969338).

Almost surely, 2^156878012 is an apocalyptic number.

It is an amenable number.

156878012 is a deficient number, since it is larger than the sum of its proper divisors (118754044).

156878012 is a wasteful number, since it uses less digits than its factorization.

156878012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156508 (or 156506 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 156878012 is about 12525.0952890587. The cubic root of 156878012 is about 539.3293136637.

The spelling of 156878012 in words is "one hundred fifty-six million, eight hundred seventy-eight thousand, twelve".