138200139 has 72 divisors (see below), whose sum is σ = 261780480. Its totient is φ = 69400800.

The previous prime is 138200137. The next prime is 138200141. The reversal of 138200139 is 931002831.

It is an interprime number because it is at equal distance from previous prime (138200137) and next prime (138200141).

It is not a de Polignac number, because 138200139 - 2¹ = 138200137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138200131) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 149922 + ... + 150840.

It is an arithmetic number, because the mean of its divisors is an integer number (3635840).

Almost surely, 2^138200139 is an apocalyptic number.

138200139 is a deficient number, since it is larger than the sum of its proper divisors (123580341).

138200139 is a wasteful number, since it uses less digits than its factorization.

138200139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 138200139 is about 11755.8555196974. The cubic root of 138200139 is about 517.0146229591.

The spelling of 138200139 in words is "one hundred thirty-eight million, two hundred thousand, one hundred thirty-nine".