131324401 has 16 divisors (see below), whose sum is σ = 146728960. Its totient is φ = 116717760.

The previous prime is 131324387. The next prime is 131324423. The reversal of 131324401 is 104423131.

It is a cyclic number.

It is not a de Polignac number, because 131324401 - 2⁹ = 131323889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131324491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91576 + ... + 92998.

It is an arithmetic number, because the mean of its divisors is an integer number (9170560).

Almost surely, 2^131324401 is an apocalyptic number.

It is an amenable number.

131324401 is a deficient number, since it is larger than the sum of its proper divisors (15404559).

131324401 is a wasteful number, since it uses less digits than its factorization.

131324401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131324401 is about 11459.6859032000. The cubic root of 131324401 is about 508.2941868149.

Adding to 131324401 its reverse (104423131), we get a palindrome (235747532).

The spelling of 131324401 in words is "one hundred thirty-one million, three hundred twenty-four thousand, four hundred one".