156390212 has 24 divisors (see below), whose sum is σ = 300478080. Its totient is φ = 70630560.

The previous prime is 156390211. The next prime is 156390229. The reversal of 156390212 is 212093651.

It is not an unprimeable number, because it can be changed into a prime (156390211) 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 7 ways as a sum of consecutive naturals, for example, 4412 + ... + 18227.

It is an arithmetic number, because the mean of its divisors is an integer number (12519920).

Almost surely, 2^156390212 is an apocalyptic number.

It is an amenable number.

156390212 is a deficient number, since it is larger than the sum of its proper divisors (144087868).

156390212 is a wasteful number, since it uses less digits than its factorization.

156390212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22811 (or 22809 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 156390212 is about 12505.6072223623. The cubic root of 156390212 is about 538.7697323931.

The spelling of 156390212 in words is "one hundred fifty-six million, three hundred ninety thousand, two hundred twelve".