131249548835 has 4 divisors (see below), whose sum is σ = 157499458608. Its totient is φ = 104999639064.

The previous prime is 131249548831. The next prime is 131249548841. The reversal of 131249548835 is 538845942131.

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

It is a cyclic number.

It is not a de Polignac number, because 131249548835 - 2² = 131249548831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131249548831) 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 3 ways as a sum of consecutive naturals, for example, 13124954879 + ... + 13124954888.

It is an arithmetic number, because the mean of its divisors is an integer number (39374864652).

Almost surely, 2^131249548835 is an apocalyptic number.

131249548835 is a deficient number, since it is larger than the sum of its proper divisors (26249909773).

131249548835 is an equidigital number, since it uses as much as digits as its factorization.

131249548835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26249909772.

The product of its digits is 4147200, while the sum is 53.

The spelling of 131249548835 in words is "one hundred thirty-one billion, two hundred forty-nine million, five hundred forty-eight thousand, eight hundred thirty-five".