138902074 has 8 divisors (see below), whose sum is σ = 208641888. Its totient is φ = 69354780.

The previous prime is 138902069. The next prime is 138902111. The reversal of 138902074 is 470209831.

138902074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46312 + ... + 49219.

It is an arithmetic number, because the mean of its divisors is an integer number (26080236).

Almost surely, 2^138902074 is an apocalyptic number.

138902074 is a deficient number, since it is larger than the sum of its proper divisors (69739814).

138902074 is an equidigital number, since it uses as much as digits as its factorization.

138902074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96260.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 138902074 is about 11785.6724033888. The cubic root of 138902074 is about 517.8884714894. Note that the first 3 decimals are identical.

The spelling of 138902074 in words is "one hundred thirty-eight million, nine hundred two thousand, seventy-four".