131413313 has 4 divisors (see below), whose sum is σ = 131554500. Its totient is φ = 131272128.

The previous prime is 131413279. The next prime is 131413327. The reversal of 131413313 is 313314131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26801329 + 104611984 = 5177^2 + 10228^2 .

It is a cyclic number.

It is not a de Polignac number, because 131413313 - 2⁸ = 131413057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131413613) 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, 69188 + ... + 71061.

It is an arithmetic number, because the mean of its divisors is an integer number (32888625).

Almost surely, 2^131413313 is an apocalyptic number.

It is an amenable number.

131413313 is a deficient number, since it is larger than the sum of its proper divisors (141187).

131413313 is an equidigital number, since it uses as much as digits as its factorization.

131413313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141186.

The product of its digits is 324, while the sum is 20.

The square root of 131413313 is about 11463.5645852414. The cubic root of 131413313 is about 508.4088729330.

Adding to 131413313 its reverse (313314131), we get a palindrome (444727444).

The spelling of 131413313 in words is "one hundred thirty-one million, four hundred thirteen thousand, three hundred thirteen".