131512740225 has 48 divisors (see below), whose sum is σ = 218794954560. Its totient is φ = 69701817600.

The previous prime is 131512740199. The next prime is 131512740241. The reversal of 131512740225 is 522047215131.

It is a happy number.

It is not a de Polignac number, because 131512740225 - 2⁵ = 131512740193 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25341931 + ... + 25347119.

It is an arithmetic number, because the mean of its divisors is an integer number (4558228220).

Almost surely, 2^131512740225 is an apocalyptic number.

131512740225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131512740225 is a deficient number, since it is larger than the sum of its proper divisors (87282214335).

131512740225 is a wasteful number, since it uses less digits than its factorization.

131512740225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

Adding to 131512740225 its reverse (522047215131), we get a palindrome (653559955356).

The spelling of 131512740225 in words is "one hundred thirty-one billion, five hundred twelve million, seven hundred forty thousand, two hundred twenty-five".