139791560531 has 8 divisors (see below), whose sum is σ = 165270810720. Its totient is φ = 115689567168.

The previous prime is 139791560483. The next prime is 139791560563. The reversal of 139791560531 is 135065197931.

139791560531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139791560531 - 2¹⁴ = 139791544147 is a prime.

It is a super-2 number, since 2×139791560531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139791560531.

It is not an unprimeable number, because it can be changed into a prime (139791562531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344313986 + ... + 344314391.

It is an arithmetic number, because the mean of its divisors is an integer number (20658851340).

Almost surely, 2^139791560531 is an apocalyptic number.

139791560531 is a deficient number, since it is larger than the sum of its proper divisors (25479250189).

139791560531 is an equidigital number, since it uses as much as digits as its factorization.

139791560531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688628413.

The product of its (nonzero) digits is 765450, while the sum is 50.

The spelling of 139791560531 in words is "one hundred thirty-nine billion, seven hundred ninety-one million, five hundred sixty thousand, five hundred thirty-one".