138875046 has 16 divisors (see below), whose sum is σ = 278809344. Its totient is φ = 46115144.

The previous prime is 138875021. The next prime is 138875053. The reversal of 138875046 is 640578831.

It is a junction number, because it is equal to n+sod(n) for n = 138874989 and 138875007.

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, 42426 + ... + 45581.

It is an arithmetic number, because the mean of its divisors is an integer number (17425584).

Almost surely, 2^138875046 is an apocalyptic number.

138875046 is an abundant number, since it is smaller than the sum of its proper divisors (139934298).

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

138875046 is a wasteful number, since it uses less digits than its factorization.

138875046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88275.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 138875046 is about 11784.5257011048. The cubic root of 138875046 is about 517.8548785243.

The spelling of 138875046 in words is "one hundred thirty-eight million, eight hundred seventy-five thousand, forty-six".