138875654 has 8 divisors (see below), whose sum is σ = 208428768. Its totient is φ = 69399400.

The previous prime is 138875641. The next prime is 138875677. The reversal of 138875654 is 456578831.

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

It is a junction number, because it is equal to n+sod(n) for n = 138875599 and 138875608.

It is a congruent number.

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, 14462 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (26053596).

Almost surely, 2^138875654 is an apocalyptic number.

138875654 is a deficient number, since it is larger than the sum of its proper divisors (69553114).

138875654 is a wasteful number, since it uses less digits than its factorization.

138875654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38430.

The product of its digits is 806400, while the sum is 47.

The square root of 138875654 is about 11784.5514976175. The cubic root of 138875654 is about 517.8556342523.

The spelling of 138875654 in words is "one hundred thirty-eight million, eight hundred seventy-five thousand, six hundred fifty-four".