225671137 has 2 divisors, whose sum is σ = 225671138. Its totient is φ = 225671136.

The previous prime is 225671129. The next prime is 225671143. The reversal of 225671137 is 731176522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134583201 + 91087936 = 11601^2 + 9544^2 .

It is a cyclic number.

It is not a de Polignac number, because 225671137 - 2³ = 225671129 is a prime.

It is not a weakly prime, because it can be changed into another prime (225671167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112835568 + 112835569.

It is an arithmetic number, because the mean of its divisors is an integer number (112835569).

Almost surely, 2^225671137 is an apocalyptic number.

It is an amenable number.

225671137 is a deficient number, since it is larger than the sum of its proper divisors (1).

225671137 is an equidigital number, since it uses as much as digits as its factorization.

225671137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 225671137 is about 15022.3545757647. The cubic root of 225671137 is about 608.8243386512.

The spelling of 225671137 in words is "two hundred twenty-five million, six hundred seventy-one thousand, one hundred thirty-seven".