225240319 has 2 divisors, whose sum is σ = 225240320. Its totient is φ = 225240318.

The previous prime is 225240299. The next prime is 225240331. The reversal of 225240319 is 913042522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225240319 - 2¹³ = 225232127 is a prime.

It is a super-2 number, since 2×225240319² = 101466402606443522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225340319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112620159 + 112620160.

It is an arithmetic number, because the mean of its divisors is an integer number (112620160).

Almost surely, 2^225240319 is an apocalyptic number.

225240319 is a deficient number, since it is larger than the sum of its proper divisors (1).

225240319 is an equidigital number, since it uses as much as digits as its factorization.

225240319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 225240319 is about 15008.0084954667. The cubic root of 225240319 is about 608.4366660188.

The spelling of 225240319 in words is "two hundred twenty-five million, two hundred forty thousand, three hundred nineteen".