188148812 has 6 divisors (see below), whose sum is σ = 329260428. Its totient is φ = 94074404.

The previous prime is 188148803. The next prime is 188148833. The reversal of 188148812 is 218841881.

It is a super-2 number, since 2×188148812² = 70799950914022688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 188148812.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23518598 + ... + 23518605.

It is an arithmetic number, because the mean of its divisors is an integer number (54876738).

Almost surely, 2^188148812 is an apocalyptic number.

It is an amenable number.

188148812 is a deficient number, since it is larger than the sum of its proper divisors (141111616).

188148812 is a wasteful number, since it uses less digits than its factorization.

188148812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47037207 (or 47037205 counting only the distinct ones).

The product of its digits is 32768, while the sum is 41.

The square root of 188148812 is about 13716.7347426419. The cubic root of 188148812 is about 573.0165428879.

The spelling of 188148812 in words is "one hundred eighty-eight million, one hundred forty-eight thousand, eight hundred twelve".