224431919 has 2 divisors, whose sum is σ = 224431920. Its totient is φ = 224431918.

The previous prime is 224431873. The next prime is 224431931. The reversal of 224431919 is 919134422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224431919 is a prime.

It is a super-2 number, since 2×224431919² = 100739372532045122, which contains 22 as substring.

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 (224431019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112215959 + 112215960.

It is an arithmetic number, because the mean of its divisors is an integer number (112215960).

Almost surely, 2^224431919 is an apocalyptic number.

224431919 is a deficient number, since it is larger than the sum of its proper divisors (1).

224431919 is an equidigital number, since it uses as much as digits as its factorization.

224431919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 224431919 is about 14981.0519991087. The cubic root of 224431919 is about 607.7078891329.

The spelling of 224431919 in words is "two hundred twenty-four million, four hundred thirty-one thousand, nine hundred nineteen".