138636092 has 36 divisors (see below), whose sum is σ = 291340224. Its totient is φ = 57496320.

The previous prime is 138636083. The next prime is 138636097. The reversal of 138636092 is 290636831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138636097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5333 + ... + 17484.

It is an arithmetic number, because the mean of its divisors is an integer number (8092784).

Almost surely, 2^138636092 is an apocalyptic number.

It is an amenable number.

138636092 is an abundant number, since it is smaller than the sum of its proper divisors (152704132).

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

138636092 is a wasteful number, since it uses less digits than its factorization.

138636092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866 (or 22857 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 138636092 is about 11774.3828713016. The cubic root of 138636092 is about 517.5576940197.

The spelling of 138636092 in words is "one hundred thirty-eight million, six hundred thirty-six thousand, ninety-two".