156945212 has 24 divisors (see below), whose sum is σ = 282254112. Its totient is φ = 76313600.

The previous prime is 156945209. The next prime is 156945221. The reversal of 156945212 is 212549651.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56537 + ... + 59247.

It is an arithmetic number, because the mean of its divisors is an integer number (11760588).

Almost surely, 2^156945212 is an apocalyptic number.

It is an amenable number.

156945212 is a deficient number, since it is larger than the sum of its proper divisors (125308900).

156945212 is a wasteful number, since it uses less digits than its factorization.

156945212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3107 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 156945212 is about 12527.7776161616. Note that the first 3 decimals coincide. The cubic root of 156945212 is about 539.4063114016.

The spelling of 156945212 in words is "one hundred fifty-six million, nine hundred forty-five thousand, two hundred twelve".