225434321291 has 2 divisors, whose sum is σ = 225434321292. Its totient is φ = 225434321290.

The previous prime is 225434321279. The next prime is 225434321309. The reversal of 225434321291 is 192123434522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225434321291 is a prime.

It is not a weakly prime, because it can be changed into another prime (225434320291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112717160645 + 112717160646.

It is an arithmetic number, because the mean of its divisors is an integer number (112717160646).

Almost surely, 2^225434321291 is an apocalyptic number.

225434321291 is a deficient number, since it is larger than the sum of its proper divisors (1).

225434321291 is an equidigital number, since it uses as much as digits as its factorization.

225434321291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The spelling of 225434321291 in words is "two hundred twenty-five billion, four hundred thirty-four million, three hundred twenty-one thousand, two hundred ninety-one".