131367215725 has 24 divisors (see below), whose sum is σ = 172371860352. Its totient is φ = 99108609600.

The previous prime is 131367215723. The next prime is 131367215731. The reversal of 131367215725 is 527512763131.

It is not a de Polignac number, because 131367215725 - 2¹ = 131367215723 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131367215723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1568082 + ... + 1649731.

It is an arithmetic number, because the mean of its divisors is an integer number (7182160848).

Almost surely, 2^131367215725 is an apocalyptic number.

It is an amenable number.

131367215725 is a deficient number, since it is larger than the sum of its proper divisors (41004644627).

131367215725 is a wasteful number, since it uses less digits than its factorization.

131367215725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217917 (or 3217912 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

Adding to 131367215725 its reverse (527512763131), we get a palindrome (658879978856).

The spelling of 131367215725 in words is "one hundred thirty-one billion, three hundred sixty-seven million, two hundred fifteen thousand, seven hundred twenty-five".