224245291 has 2 divisors, whose sum is σ = 224245292. Its totient is φ = 224245290.

The previous prime is 224245247. The next prime is 224245303. The reversal of 224245291 is 192542422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224245291 is a prime.

It is not a weakly prime, because it can be changed into another prime (224245891) 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, 112122645 + 112122646.

It is an arithmetic number, because the mean of its divisors is an integer number (112122646).

Almost surely, 2^224245291 is an apocalyptic number.

224245291 is a deficient number, since it is larger than the sum of its proper divisors (1).

224245291 is an equidigital number, since it uses as much as digits as its factorization.

224245291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 224245291 is about 14974.8219021129. The cubic root of 224245291 is about 607.5393944433.

The spelling of 224245291 in words is "two hundred twenty-four million, two hundred forty-five thousand, two hundred ninety-one".