225245239 has 2 divisors, whose sum is σ = 225245240. Its totient is φ = 225245238.

The previous prime is 225245219. The next prime is 225245249. The reversal of 225245239 is 932542522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225245239 - 2²³ = 216856631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225245219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112622619 + 112622620.

It is an arithmetic number, because the mean of its divisors is an integer number (112622620).

Almost surely, 2^225245239 is an apocalyptic number.

225245239 is a deficient number, since it is larger than the sum of its proper divisors (1).

225245239 is an equidigital number, since it uses as much as digits as its factorization.

225245239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 225245239 is about 15008.1724070588. The cubic root of 225245239 is about 608.4410960821.

The spelling of 225245239 in words is "two hundred twenty-five million, two hundred forty-five thousand, two hundred thirty-nine".