225373171 has 2 divisors, whose sum is σ = 225373172. Its totient is φ = 225373170.

The previous prime is 225373163. The next prime is 225373177. The reversal of 225373171 is 171373522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225373171 - 2³ = 225373163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225373177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112686585 + 112686586.

It is an arithmetic number, because the mean of its divisors is an integer number (112686586).

Almost surely, 2^225373171 is an apocalyptic number.

225373171 is a deficient number, since it is larger than the sum of its proper divisors (1).

225373171 is an equidigital number, since it uses as much as digits as its factorization.

225373171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 31.

The square root of 225373171 is about 15012.4338799543. The cubic root of 225373171 is about 608.5562658922.

The spelling of 225373171 in words is "two hundred twenty-five million, three hundred seventy-three thousand, one hundred seventy-one".