138545996 has 12 divisors (see below), whose sum is σ = 243156648. Its totient is φ = 69072672.

The previous prime is 138545977. The next prime is 138545999. The reversal of 138545996 is 699545831.

It is a happy number.

138545996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (138545999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48521 + ... + 51296.

It is an arithmetic number, because the mean of its divisors is an integer number (20263054).

Almost surely, 2^138545996 is an apocalyptic number.

It is an amenable number.

138545996 is a deficient number, since it is larger than the sum of its proper divisors (104610652).

138545996 is a wasteful number, since it uses less digits than its factorization.

138545996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100168 (or 100166 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 50.

The square root of 138545996 is about 11770.5563165043. The cubic root of 138545996 is about 517.4455539505.

The spelling of 138545996 in words is "one hundred thirty-eight million, five hundred forty-five thousand, nine hundred ninety-six".