225159197 has 2 divisors, whose sum is σ = 225159198. Its totient is φ = 225159196.

The previous prime is 225159131. The next prime is 225159239. The reversal of 225159197 is 791951522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135932281 + 89226916 = 11659^2 + 9446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225159197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225159127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112579598 + 112579599.

It is an arithmetic number, because the mean of its divisors is an integer number (112579599).

Almost surely, 2^225159197 is an apocalyptic number.

It is an amenable number.

225159197 is a deficient number, since it is larger than the sum of its proper divisors (1).

225159197 is an equidigital number, since it uses as much as digits as its factorization.

225159197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 41.

The square root of 225159197 is about 15005.3056283436. The cubic root of 225159197 is about 608.3636128962.

The spelling of 225159197 in words is "two hundred twenty-five million, one hundred fifty-nine thousand, one hundred ninety-seven".