131710507 has 4 divisors (see below), whose sum is σ = 131793480. Its totient is φ = 131627536.

The previous prime is 131710499. The next prime is 131710511. The reversal of 131710507 is 705017131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131710507 - 2³ = 131710499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131710207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39058 + ... + 42295.

It is an arithmetic number, because the mean of its divisors is an integer number (32948370).

Almost surely, 2^131710507 is an apocalyptic number.

131710507 is a deficient number, since it is larger than the sum of its proper divisors (82973).

131710507 is an equidigital number, since it uses as much as digits as its factorization.

131710507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82972.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 131710507 is about 11476.5198122079. The cubic root of 131710507 is about 508.7918435360.

Adding to 131710507 its reverse (705017131), we get a palindrome (836727638).

The spelling of 131710507 in words is "one hundred thirty-one million, seven hundred ten thousand, five hundred seven".