139755557931 has 24 divisors (see below), whose sum is σ = 206809424640. Its totient is φ = 83877982320.

The previous prime is 139755557911. The next prime is 139755557933.

139755557931 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 139755557931 - 2⁶ = 139755557867 is a prime.

It is a super-2 number, since 2×139755557931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139755557933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831551 + ... + 1906328.

It is an arithmetic number, because the mean of its divisors is an integer number (8617059360).

Almost surely, 2^139755557931 is an apocalyptic number.

139755557931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139755557931 is a deficient number, since it is larger than the sum of its proper divisors (67053866709).

139755557931 is a wasteful number, since it uses less digits than its factorization.

139755557931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738007 (or 3737996 counting only the distinct ones).

The product of its digits is 22325625, while the sum is 60.

The spelling of 139755557931 in words is "one hundred thirty-nine billion, seven hundred fifty-five million, five hundred fifty-seven thousand, nine hundred thirty-one".