138249951059 has 6 divisors (see below), whose sum is σ = 151960690140. Its totient is φ = 125681773580.

The previous prime is 138249951043. The next prime is 138249951083. The reversal of 138249951059 is 950159942831.

It is not a de Polignac number, because 138249951059 - 2⁴ = 138249951043 is a prime.

It is a super-2 number, since 2×138249951059² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138249950995 and 138249951013.

It is not an unprimeable number, because it can be changed into a prime (138249951029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 571280669 + ... + 571280910.

It is an arithmetic number, because the mean of its divisors is an integer number (25326781690).

Almost surely, 2^138249951059 is an apocalyptic number.

138249951059 is a deficient number, since it is larger than the sum of its proper divisors (13710739081).

138249951059 is a wasteful number, since it uses less digits than its factorization.

138249951059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142561601 (or 1142561590 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 138249951059 in words is "one hundred thirty-eight billion, two hundred forty-nine million, nine hundred fifty-one thousand, fifty-nine".