131312751 has 8 divisors (see below), whose sum is σ = 175178544. Its totient is φ = 87494400.

The previous prime is 131312749. The next prime is 131312767. The reversal of 131312751 is 157213131.

It is a happy number.

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

It is not a de Polignac number, because 131312751 - 2¹ = 131312749 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4800 + ... + 16901.

It is an arithmetic number, because the mean of its divisors is an integer number (21897318).

Almost surely, 2^131312751 is an apocalyptic number.

131312751 is a deficient number, since it is larger than the sum of its proper divisors (43865793).

131312751 is a wasteful number, since it uses less digits than its factorization.

131312751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23721.

The product of its digits is 630, while the sum is 24.

The square root of 131312751 is about 11459.1775882914. The cubic root of 131312751 is about 508.2791558373.

Adding to 131312751 its reverse (157213131), we get a palindrome (288525882).

The spelling of 131312751 in words is "one hundred thirty-one million, three hundred twelve thousand, seven hundred fifty-one".