131248835977 has 12 divisors (see below), whose sum is σ = 152731271316. Its totient is φ = 112459173120.

The previous prime is 131248835959. The next prime is 131248835981. The reversal of 131248835977 is 779538842131.

It can be written as a sum of positive squares in 2 ways, for example, as 53740048761 + 77508787216 = 231819^2 + 278404^2 .

It is not a de Polignac number, because 131248835977 - 2³¹ = 129101352329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131248835947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333924 + ... + 611557.

It is an arithmetic number, because the mean of its divisors is an integer number (12727605943).

Almost surely, 2^131248835977 is an apocalyptic number.

It is an amenable number.

131248835977 is a deficient number, since it is larger than the sum of its proper divisors (21482435339).

131248835977 is an equidigital number, since it uses as much as digits as its factorization.

131248835977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948328 (or 948321 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 58.

The spelling of 131248835977 in words is "one hundred thirty-one billion, two hundred forty-eight million, eight hundred thirty-five thousand, nine hundred seventy-seven".