131136250577 has 4 divisors (see below), whose sum is σ = 133926383616. Its totient is φ = 128346117540.

The previous prime is 131136250571. The next prime is 131136250589. The reversal of 131136250577 is 775052631131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131136250577 - 2¹⁶ = 131136185041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131136250571) 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, 1395066449 + ... + 1395066542.

It is an arithmetic number, because the mean of its divisors is an integer number (33481595904).

Almost surely, 2^131136250577 is an apocalyptic number.

It is an amenable number.

131136250577 is a deficient number, since it is larger than the sum of its proper divisors (2790133039).

131136250577 is an equidigital number, since it uses as much as digits as its factorization.

131136250577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790133038.

The product of its (nonzero) digits is 132300, while the sum is 41.

The spelling of 131136250577 in words is "one hundred thirty-one billion, one hundred thirty-six million, two hundred fifty thousand, five hundred seventy-seven".