225302239 has 2 divisors, whose sum is σ = 225302240. Its totient is φ = 225302238.

The previous prime is 225302201. The next prime is 225302261. The reversal of 225302239 is 932203522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225302239 is a prime.

It is a super-2 number, since 2×225302239² = 101522197796826242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225302639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112651119 + 112651120.

It is an arithmetic number, because the mean of its divisors is an integer number (112651120).

Almost surely, 2^225302239 is an apocalyptic number.

225302239 is a deficient number, since it is larger than the sum of its proper divisors (1).

225302239 is an equidigital number, since it uses as much as digits as its factorization.

225302239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 225302239 is about 15010.0712523292. The cubic root of 225302239 is about 608.4924152836.

The spelling of 225302239 in words is "two hundred twenty-five million, three hundred two thousand, two hundred thirty-nine".