138927356 has 6 divisors (see below), whose sum is σ = 243122880. Its totient is φ = 69463676.

The previous prime is 138927353. The next prime is 138927361. The reversal of 138927356 is 653729831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138927353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17365916 + ... + 17365923.

It is an arithmetic number, because the mean of its divisors is an integer number (40520480).

Almost surely, 2^138927356 is an apocalyptic number.

It is an amenable number.

138927356 is a deficient number, since it is larger than the sum of its proper divisors (104195524).

138927356 is a wasteful number, since it uses less digits than its factorization.

138927356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34731843 (or 34731841 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 138927356 is about 11786.7449280961. The cubic root of 138927356 is about 517.9198904156.

The spelling of 138927356 in words is "one hundred thirty-eight million, nine hundred twenty-seven thousand, three hundred fifty-six".