224431231 has 2 divisors, whose sum is σ = 224431232. Its totient is φ = 224431230.

The previous prime is 224431223. The next prime is 224431237. The reversal of 224431231 is 132134422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224431231 - 2³ = 224431223 is a prime.

It is a super-2 number, since 2×224431231² = 100738754896350722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224431237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112215615 + 112215616.

It is an arithmetic number, because the mean of its divisors is an integer number (112215616).

Almost surely, 2^224431231 is an apocalyptic number.

224431231 is a deficient number, since it is larger than the sum of its proper divisors (1).

224431231 is an equidigital number, since it uses as much as digits as its factorization.

224431231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 224431231 is about 14981.0290367518. The cubic root of 224431231 is about 607.7072681525.

Adding to 224431231 its reverse (132134422), we get a palindrome (356565653).

The spelling of 224431231 in words is "two hundred twenty-four million, four hundred thirty-one thousand, two hundred thirty-one".