138800975 has 12 divisors (see below), whose sum is σ = 179597136. Its totient is φ = 106212480.

The previous prime is 138800969. The next prime is 138800993. The reversal of 138800975 is 579008831.

It is a happy number.

It is not a de Polignac number, because 138800975 - 2⁶ = 138800911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120122 + ... + 121271.

It is an arithmetic number, because the mean of its divisors is an integer number (14966428).

Almost surely, 2^138800975 is an apocalyptic number.

138800975 is a deficient number, since it is larger than the sum of its proper divisors (40796161).

138800975 is a wasteful number, since it uses less digits than its factorization.

138800975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241426 (or 241421 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 138800975 is about 11781.3825589359. The cubic root of 138800975 is about 517.7627937055.

The spelling of 138800975 in words is "one hundred thirty-eight million, eight hundred thousand, nine hundred seventy-five".