131499651089 has 4 divisors (see below), whose sum is σ = 131502558900. Its totient is φ = 131496743280.

The previous prime is 131499651071. The next prime is 131499651131. The reversal of 131499651089 is 980156994131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118914625600 + 12585025489 = 344840^2 + 112183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131499651089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131499651389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384982 + ... + 1476879.

It is an arithmetic number, because the mean of its divisors is an integer number (32875639725).

Almost surely, 2^131499651089 is an apocalyptic number.

It is an amenable number.

131499651089 is a deficient number, since it is larger than the sum of its proper divisors (2907811).

131499651089 is an equidigital number, since it uses as much as digits as its factorization.

131499651089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907810.

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 131499651089 in words is "one hundred thirty-one billion, four hundred ninety-nine million, six hundred fifty-one thousand, eighty-nine".