131573250787 has 8 divisors (see below), whose sum is σ = 145263787200. Its totient is φ = 118170936360.

The previous prime is 131573250713. The next prime is 131573250791. The reversal of 131573250787 is 787052375131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131573250787 is a prime.

It is a super-2 number, since 2×131573250787² (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 131573250787.

It is not an unprimeable number, because it can be changed into a prime (131573250797) 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 7 ways as a sum of consecutive naturals, for example, 72054537 + ... + 72056362.

It is an arithmetic number, because the mean of its divisors is an integer number (18157973400).

Almost surely, 2^131573250787 is an apocalyptic number.

131573250787 is a deficient number, since it is larger than the sum of its proper divisors (13690536413).

131573250787 is a wasteful number, since it uses less digits than its factorization.

131573250787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144110993.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 131573250787 in words is "one hundred thirty-one billion, five hundred seventy-three million, two hundred fifty thousand, seven hundred eighty-seven".