131573181612 has 48 divisors (see below), whose sum is σ = 314281400832. Its totient is φ = 42822548160.

The previous prime is 131573181577. The next prime is 131573181617. The reversal of 131573181612 is 216181375131.

It is not an unprimeable number, because it can be changed into a prime (131573181617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39618 + ... + 514505.

It is an arithmetic number, because the mean of its divisors is an integer number (6547529184).

Almost surely, 2^131573181612 is an apocalyptic number.

131573181612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131573181612 is an abundant number, since it is smaller than the sum of its proper divisors (182708219220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131573181612 is a wasteful number, since it uses less digits than its factorization.

131573181612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554598 (or 554596 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The spelling of 131573181612 in words is "one hundred thirty-one billion, five hundred seventy-three million, one hundred eighty-one thousand, six hundred twelve".