138576186 has 48 divisors (see below), whose sum is σ = 351134784. Its totient is φ = 38670912.

The previous prime is 138576131. The next prime is 138576203. The reversal of 138576186 is 681675831.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7371 + ... + 18206.

It is an arithmetic number, because the mean of its divisors is an integer number (7315308).

Almost surely, 2^138576186 is an apocalyptic number.

138576186 is an abundant number, since it is smaller than the sum of its proper divisors (212558598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138576186 is a wasteful number, since it uses less digits than its factorization.

138576186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25635 (or 25632 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 138576186 is about 11771.8386839100. The cubic root of 138576186 is about 517.4831360464.

The spelling of 138576186 in words is "one hundred thirty-eight million, five hundred seventy-six thousand, one hundred eighty-six".