130731933 has 4 divisors (see below), whose sum is σ = 174309248. Its totient is φ = 87154620.

The previous prime is 130731917. The next prime is 130731949. The reversal of 130731933 is 339137031.

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 an interprime number because it is at equal distance from previous prime (130731917) and next prime (130731949).

It is not a de Polignac number, because 130731933 - 2⁴ = 130731917 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 130731933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130736933) 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, 21788653 + ... + 21788658.

It is an arithmetic number, because the mean of its divisors is an integer number (43577312).

Almost surely, 2^130731933 is an apocalyptic number.

It is an amenable number.

130731933 is a deficient number, since it is larger than the sum of its proper divisors (43577315).

130731933 is an equidigital number, since it uses as much as digits as its factorization.

130731933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43577314.

The product of its (nonzero) digits is 5103, while the sum is 30.

The square root of 130731933 is about 11433.8065839859. The cubic root of 130731933 is about 507.5286473026.

Adding to 130731933 its reverse (339137031), we get a palindrome (469868964).

The spelling of 130731933 in words is "one hundred thirty million, seven hundred thirty-one thousand, nine hundred thirty-three".