138339194 has 16 divisors (see below), whose sum is σ = 238862400. Its totient is φ = 58860864.

The previous prime is 138339167. The next prime is 138339211. The reversal of 138339194 is 491933831.

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, 33599 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (14928900).

Almost surely, 2^138339194 is an apocalyptic number.

138339194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138339194 is a deficient number, since it is larger than the sum of its proper divisors (100523206).

138339194 is a wasteful number, since it uses less digits than its factorization.

138339194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71237.

The product of its digits is 69984, while the sum is 41.

The square root of 138339194 is about 11761.7683194322. The cubic root of 138339194 is about 517.1879690683.

The spelling of 138339194 in words is "one hundred thirty-eight million, three hundred thirty-nine thousand, one hundred ninety-four".