130756433 has 4 divisors (see below), whose sum is σ = 131048100. Its totient is φ = 130464768.

The previous prime is 130756429. The next prime is 130756453. The reversal of 130756433 is 334657031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91718929 + 39037504 = 9577^2 + 6248^2 .

It is a cyclic number.

It is not a de Polignac number, because 130756433 - 2² = 130756429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130756433.

It is not an unprimeable number, because it can be changed into a prime (130756453) 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, 145160 + ... + 146057.

It is an arithmetic number, because the mean of its divisors is an integer number (32762025).

Almost surely, 2^130756433 is an apocalyptic number.

It is an amenable number.

130756433 is a deficient number, since it is larger than the sum of its proper divisors (291667).

130756433 is an equidigital number, since it uses as much as digits as its factorization.

130756433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291666.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 130756433 is about 11434.8779180191. The cubic root of 130756433 is about 507.5603500266.

The spelling of 130756433 in words is "one hundred thirty million, seven hundred fifty-six thousand, four hundred thirty-three".