225731630843 has 2 divisors, whose sum is σ = 225731630844. Its totient is φ = 225731630842.

The previous prime is 225731630749. The next prime is 225731630863. The reversal of 225731630843 is 348036137522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225731630843 - 2³⁰ = 224657889019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 225731630794 and 225731630803.

It is not a weakly prime, because it can be changed into another prime (225731630863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112865815421 + 112865815422.

It is an arithmetic number, because the mean of its divisors is an integer number (112865815422).

Almost surely, 2^225731630843 is an apocalyptic number.

225731630843 is a deficient number, since it is larger than the sum of its proper divisors (1).

225731630843 is an equidigital number, since it uses as much as digits as its factorization.

225731630843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 225731630843 in words is "two hundred twenty-five billion, seven hundred thirty-one million, six hundred thirty thousand, eight hundred forty-three".