212682172 has 36 divisors (see below), whose sum is σ = 408255120. Its totient is φ = 96608512.

The previous prime is 212682161. The next prime is 212682203. The reversal of 212682172 is 271286212.

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 11 ways as a sum of consecutive naturals, for example, 55329 + ... + 59047.

It is an arithmetic number, because the mean of its divisors is an integer number (11340420).

Almost surely, 2^212682172 is an apocalyptic number.

It is an amenable number.

212682172 is a deficient number, since it is larger than the sum of its proper divisors (195572948).

212682172 is a wasteful number, since it uses less digits than its factorization.

212682172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3767 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 212682172 is about 14583.6268465701. The cubic root of 212682172 is about 596.9120721361.

The spelling of 212682172 in words is "two hundred twelve million, six hundred eighty-two thousand, one hundred seventy-two".