130439233 has 6 divisors (see below), whose sum is σ = 136357634. Its totient is φ = 124767456.

The previous prime is 130439213. The next prime is 130439251. The reversal of 130439233 is 332934031.

It can be written as a sum of positive squares in only one way, i.e., 123921424 + 6517809 = 11132^2 + 2553^2 .

It is not a de Polignac number, because 130439233 - 2¹⁷ = 130308161 is a prime.

It is a super-3 number, since 3×130439233³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130439213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122760 + ... + 123817.

Almost surely, 2^130439233 is an apocalyptic number.

It is an amenable number.

130439233 is a deficient number, since it is larger than the sum of its proper divisors (5918401).

130439233 is an equidigital number, since it uses as much as digits as its factorization.

130439233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246623 (or 246600 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 130439233 is about 11420.9996497680. Note that the first 3 decimals coincide. The cubic root of 130439233 is about 507.1495901053.

The spelling of 130439233 in words is "one hundred thirty million, four hundred thirty-nine thousand, two hundred thirty-three".