138875002 has 32 divisors (see below), whose sum is σ = 241643520. Its totient is φ = 58633200.

The previous prime is 138874991. The next prime is 138875017. The reversal of 138875002 is 200578831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378223 + ... + 378589.

It is an arithmetic number, because the mean of its divisors is an integer number (7551360).

Almost surely, 2^138875002 is an apocalyptic number.

138875002 is a deficient number, since it is larger than the sum of its proper divisors (102768518).

138875002 is a wasteful number, since it uses less digits than its factorization.

138875002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 138875002 is about 11784.5238342497. The cubic root of 138875002 is about 517.8548238333.

The spelling of 138875002 in words is "one hundred thirty-eight million, eight hundred seventy-five thousand, two".