131302401 has 16 divisors (see below), whose sum is σ = 182985600. Its totient is φ = 83639808.

The previous prime is 131302393. The next prime is 131302429. The reversal of 131302401 is 104203131.

It is not a de Polignac number, because 131302401 - 2³ = 131302393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131302471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (11436600).

Almost surely, 2^131302401 is an apocalyptic number.

It is an amenable number.

131302401 is a deficient number, since it is larger than the sum of its proper divisors (51683199).

131302401 is a wasteful number, since it uses less digits than its factorization.

131302401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15688.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131302401 is about 11458.7259763030. The cubic root of 131302401 is about 508.2658013904.

Adding to 131302401 its reverse (104203131), we get a palindrome (235505532).

The spelling of 131302401 in words is "one hundred thirty-one million, three hundred two thousand, four hundred one".