131144413 has 4 divisors (see below), whose sum is σ = 136846368. Its totient is φ = 125442460.

The previous prime is 131144401. The next prime is 131144417. The reversal of 131144413 is 314441131.

It is a happy number.

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 not a de Polignac number, because 131144413 - 2²⁵ = 97589981 is a prime.

It is a super-2 number, since 2×131144413² = 34397714122229138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131144417) 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, 2850943 + ... + 2850988.

It is an arithmetic number, because the mean of its divisors is an integer number (34211592).

Almost surely, 2^131144413 is an apocalyptic number.

It is an amenable number.

131144413 is a deficient number, since it is larger than the sum of its proper divisors (5701955).

131144413 is an equidigital number, since it uses as much as digits as its factorization.

131144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701954.

The product of its digits is 576, while the sum is 22.

The square root of 131144413 is about 11451.8301157501. The cubic root of 131144413 is about 508.0618647145.

Adding to 131144413 its reverse (314441131), we get a palindrome (445585544).

The spelling of 131144413 in words is "one hundred thirty-one million, one hundred forty-four thousand, four hundred thirteen".