609856156 has 36 divisors (see below), whose sum is σ = 1336997928. Its totient is φ = 241260768.

The previous prime is 609856139. The next prime is 609856171. The reversal of 609856156 is 651658906.

It is a super-2 number, since 2×609856156² = 743849062022192672, 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 11 ways as a sum of consecutive naturals, for example, 117126 + ... + 122221.

Almost surely, 2^609856156 is an apocalyptic number.

It is an amenable number.

609856156 is an abundant number, since it is smaller than the sum of its proper divisors (727141772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609856156 is a wasteful number, since it uses less digits than its factorization.

609856156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239378 (or 239369 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 609856156 is about 24695.2658621040. The cubic root of 609856156 is about 848.0259407485.

The spelling of 609856156 in words is "six hundred nine million, eight hundred fifty-six thousand, one hundred fifty-six".