131575164545 has 32 divisors (see below), whose sum is σ = 174163582080. Its totient is φ = 94627709440.

The previous prime is 131575164517. The next prime is 131575164547. The reversal of 131575164545 is 545461575131.

It is not a de Polignac number, because 131575164545 - 2¹² = 131575160449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131575164545.

It is not an unprimeable number, because it can be changed into a prime (131575164547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3328919 + ... + 3368211.

It is an arithmetic number, because the mean of its divisors is an integer number (5442611940).

Almost surely, 2^131575164545 is an apocalyptic number.

It is an amenable number.

131575164545 is a deficient number, since it is larger than the sum of its proper divisors (42588417535).

131575164545 is a wasteful number, since it uses less digits than its factorization.

131575164545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39985.

The product of its digits is 1260000, while the sum is 47.

The spelling of 131575164545 in words is "one hundred thirty-one billion, five hundred seventy-five million, one hundred sixty-four thousand, five hundred forty-five".