138670084 has 12 divisors (see below), whose sum is σ = 277340224. Its totient is φ = 59430024.

The previous prime is 138670079. The next prime is 138670109. The reversal of 138670084 is 480076831.

It is a happy number.

138670084 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 2476224 + ... + 2476279.

Almost surely, 2^138670084 is an apocalyptic number.

138670084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138670084 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138670084 is a wasteful number, since it uses less digits than its factorization.

138670084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952514 (or 4952512 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 138670084 is about 11775.8262555118. The cubic root of 138670084 is about 517.5999903251.

The spelling of 138670084 in words is "one hundred thirty-eight million, six hundred seventy thousand, eighty-four".