138099736 has 16 divisors (see below), whose sum is σ = 259117200. Its totient is φ = 69001824.

The previous prime is 138099713. The next prime is 138099749. The reversal of 138099736 is 637990831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8181 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (16194825).

Almost surely, 2^138099736 is an apocalyptic number.

It is an amenable number.

138099736 is a deficient number, since it is larger than the sum of its proper divisors (121017464).

138099736 is a wasteful number, since it uses less digits than its factorization.

138099736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12018 (or 12014 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 138099736 is about 11751.5844038155. The cubic root of 138099736 is about 516.8893881715.

The spelling of 138099736 in words is "one hundred thirty-eight million, ninety-nine thousand, seven hundred thirty-six".