225031431197 has 2 divisors, whose sum is σ = 225031431198. Its totient is φ = 225031431196.

The previous prime is 225031431181. The next prime is 225031431223. The reversal of 225031431197 is 791134130522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119803207876 + 105228223321 = 346126^2 + 324389^2 .

It is a cyclic number.

It is not a de Polignac number, because 225031431197 - 2⁴ = 225031431181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225031431197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225031431137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112515715598 + 112515715599.

It is an arithmetic number, because the mean of its divisors is an integer number (112515715599).

Almost surely, 2^225031431197 is an apocalyptic number.

It is an amenable number.

225031431197 is a deficient number, since it is larger than the sum of its proper divisors (1).

225031431197 is an equidigital number, since it uses as much as digits as its factorization.

225031431197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 225031431197 in words is "two hundred twenty-five billion, thirty-one million, four hundred thirty-one thousand, one hundred ninety-seven".