189212152 has 8 divisors (see below), whose sum is σ = 354772800. Its totient is φ = 94606072.

The previous prime is 189212147. The next prime is 189212183. The reversal of 189212152 is 251212981.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×189212152² = 71602476928942208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11825752 + ... + 11825767.

It is an arithmetic number, because the mean of its divisors is an integer number (44346600).

Almost surely, 2^189212152 is an apocalyptic number.

It is an amenable number.

189212152 is a deficient number, since it is larger than the sum of its proper divisors (165560648).

189212152 is a wasteful number, since it uses less digits than its factorization.

189212152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23651525 (or 23651521 counting only the distinct ones).

The product of its digits is 2880, while the sum is 31.

The square root of 189212152 is about 13755.4408144559. The cubic root of 189212152 is about 574.0940005579.

The spelling of 189212152 in words is "one hundred eighty-nine million, two hundred twelve thousand, one hundred fifty-two".