131413109 has 4 divisors (see below), whose sum is σ = 131464704. Its totient is φ = 131361516.

The previous prime is 131413097. The next prime is 131413127. The reversal of 131413109 is 901314131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131413109 - 2¹² = 131409013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413189) 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, 21767 + ... + 27140.

It is an arithmetic number, because the mean of its divisors is an integer number (32866176).

Almost surely, 2^131413109 is an apocalyptic number.

It is an amenable number.

131413109 is a deficient number, since it is larger than the sum of its proper divisors (51595).

131413109 is an equidigital number, since it uses as much as digits as its factorization.

131413109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51594.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 131413109 is about 11463.5556874820. Note that the first 3 decimals coincide. The cubic root of 131413109 is about 508.4086098560.

The spelling of 131413109 in words is "one hundred thirty-one million, four hundred thirteen thousand, one hundred nine".