138873622 has 8 divisors (see below), whose sum is σ = 219274200. Its totient is φ = 65782224.

The previous prime is 138873607. The next prime is 138873653. The reversal of 138873622 is 226378831.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1827247 + ... + 1827322.

It is an arithmetic number, because the mean of its divisors is an integer number (27409275).

Almost surely, 2^138873622 is an apocalyptic number.

138873622 is a deficient number, since it is larger than the sum of its proper divisors (80400578).

138873622 is a wasteful number, since it uses less digits than its factorization.

138873622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654590.

The product of its digits is 96768, while the sum is 40.

The square root of 138873622 is about 11784.4652827356. The cubic root of 138873622 is about 517.8531085210.

The spelling of 138873622 in words is "one hundred thirty-eight million, eight hundred seventy-three thousand, six hundred twenty-two".