138751250013 has 6 divisors (see below), whose sum is σ = 200418472254. Its totient is φ = 92500833336.

The previous prime is 138751250009. The next prime is 138751250107. The reversal of 138751250013 is 310052157831.

It is a happy number.

138751250013 is a `hidden beast` number, since 1 + 3 + 87 + 512 + 50 + 0 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115574841369 + 23176408644 = 339963^2 + 152238^2 .

It is not a de Polignac number, because 138751250013 - 2² = 138751250009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 138751250013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138751250003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7708402770 + ... + 7708402787.

It is an arithmetic number, because the mean of its divisors is an integer number (33403078709).

Almost surely, 2^138751250013 is an apocalyptic number.

It is an amenable number.

138751250013 is a deficient number, since it is larger than the sum of its proper divisors (61667222241).

138751250013 is a wasteful number, since it uses less digits than its factorization.

138751250013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15416805563 (or 15416805560 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 138751250013 in words is "one hundred thirty-eight billion, seven hundred fifty-one million, two hundred fifty thousand, thirteen".