131495745081 has 8 divisors (see below), whose sum is σ = 175329532000. Its totient is φ = 87662894112.

The previous prime is 131495745077. The next prime is 131495745089. The reversal of 131495745081 is 180547594131.

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

It is not a de Polignac number, because 131495745081 - 2² = 131495745077 is a prime.

It is a super-2 number, since 2×131495745081² (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 131495745081.

It is not an unprimeable number, because it can be changed into a prime (131495745089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219261 + ... + 557733.

It is an arithmetic number, because the mean of its divisors is an integer number (21916191500).

Almost surely, 2^131495745081 is an apocalyptic number.

It is an amenable number.

131495745081 is a deficient number, since it is larger than the sum of its proper divisors (43833786919).

131495745081 is a wasteful number, since it uses less digits than its factorization.

131495745081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467975.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 131495745081 in words is "one hundred thirty-one billion, four hundred ninety-five million, seven hundred forty-five thousand, eighty-one".