225999239 has 2 divisors, whose sum is σ = 225999240. Its totient is φ = 225999238.

The previous prime is 225999229. The next prime is 225999341. The reversal of 225999239 is 932999522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225999239 - 2⁴ = 225999223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225999229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112999619 + 112999620.

It is an arithmetic number, because the mean of its divisors is an integer number (112999620).

Almost surely, 2^225999239 is an apocalyptic number.

225999239 is a deficient number, since it is larger than the sum of its proper divisors (1).

225999239 is an equidigital number, since it uses as much as digits as its factorization.

225999239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 50.

The square root of 225999239 is about 15033.2710678681. The cubic root of 225999239 is about 609.1192512035.

The spelling of 225999239 in words is "two hundred twenty-five million, nine hundred ninety-nine thousand, two hundred thirty-nine".