138003900 has 36 divisors (see below), whose sum is σ = 399292152. Its totient is φ = 36800960.

The previous prime is 138003881. The next prime is 138003911. The reversal of 138003900 is 9300831.

138003900 is digitally balanced in base 2, 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 (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229707 + ... + 230306.

Almost surely, 2^138003900 is an apocalyptic number.

138003900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138003900 is an abundant number, since it is smaller than the sum of its proper divisors (261288252).

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

138003900 is a wasteful number, since it uses less digits than its factorization.

138003900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460030 (or 460023 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 138003900 is about 11747.5061183215. The cubic root of 138003900 is about 516.7697932659.

The spelling of 138003900 in words is "one hundred thirty-eight million, three thousand, nine hundred".