131380433 has 4 divisors (see below), whose sum is σ = 133607280. Its totient is φ = 129153588.

The previous prime is 131380409. The next prime is 131380489. The reversal of 131380433 is 334083131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 334083131 = 137 ⋅2438563.

It is a cyclic number.

It is not a de Polignac number, because 131380433 - 2¹² = 131376337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131380493) 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, 1113335 + ... + 1113452.

It is an arithmetic number, because the mean of its divisors is an integer number (33401820).

Almost surely, 2^131380433 is an apocalyptic number.

It is an amenable number.

131380433 is a deficient number, since it is larger than the sum of its proper divisors (2226847).

131380433 is an equidigital number, since it uses as much as digits as its factorization.

131380433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226846.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 131380433 is about 11462.1303866253. The cubic root of 131380433 is about 508.3664675944.

The spelling of 131380433 in words is "one hundred thirty-one million, three hundred eighty thousand, four hundred thirty-three".