156870212 has 12 divisors (see below), whose sum is σ = 286458816. Its totient is φ = 75024840.

The previous prime is 156870209. The next prime is 156870227. The reversal of 156870212 is 212078651.

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, 852464 + ... + 852647.

It is an arithmetic number, because the mean of its divisors is an integer number (23871568).

Almost surely, 2^156870212 is an apocalyptic number.

It is an amenable number.

156870212 is a deficient number, since it is larger than the sum of its proper divisors (129588604).

156870212 is a wasteful number, since it uses less digits than its factorization.

156870212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705138 (or 1705136 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 156870212 is about 12524.7839103116. The cubic root of 156870212 is about 539.3203750022.

The spelling of 156870212 in words is "one hundred fifty-six million, eight hundred seventy thousand, two hundred twelve".