138015804 has 24 divisors (see below), whose sum is σ = 323207248. Its totient is φ = 45838080.

The previous prime is 138015797. The next prime is 138015811. The reversal of 138015804 is 408510831.

138015804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138015797) and next prime (138015811).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17437 + ... + 24084.

Almost surely, 2^138015804 is an apocalyptic number.

It is an amenable number.

138015804 is an abundant number, since it is smaller than the sum of its proper divisors (185191444).

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

138015804 is a wasteful number, since it uses less digits than its factorization.

138015804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41805 (or 41803 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 138015804 is about 11748.0127681238. The cubic root of 138015804 is about 516.7846514227.

The spelling of 138015804 in words is "one hundred thirty-eight million, fifteen thousand, eight hundred four".