189774212 has 12 divisors (see below), whose sum is σ = 333048156. Its totient is φ = 94617600.

The previous prime is 189774187. The next prime is 189774227. The reversal of 189774212 is 212477981.

It can be written as a sum of positive squares in 2 ways, for example, as 94984516 + 94789696 = 9746^2 + 9736^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 189774212.

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, 65789 + ... + 68612.

It is an arithmetic number, because the mean of its divisors is an integer number (27754013).

Almost surely, 2^189774212 is an apocalyptic number.

It is an amenable number.

189774212 is a deficient number, since it is larger than the sum of its proper divisors (143273944).

189774212 is a wasteful number, since it uses less digits than its factorization.

189774212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134758 (or 134756 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 189774212 is about 13775.8561258457. The cubic root of 189774212 is about 574.6618927210.

The spelling of 189774212 in words is "one hundred eighty-nine million, seven hundred seventy-four thousand, two hundred twelve".