225940159 has 2 divisors, whose sum is σ = 225940160. Its totient is φ = 225940158.

The previous prime is 225940129. The next prime is 225940199. The reversal of 225940159 is 951049522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225940159 - 2⁹ = 225939647 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 (225940129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112970079 + 112970080.

It is an arithmetic number, because the mean of its divisors is an integer number (112970080).

Almost surely, 2^225940159 is an apocalyptic number.

225940159 is a deficient number, since it is larger than the sum of its proper divisors (1).

225940159 is an equidigital number, since it uses as much as digits as its factorization.

225940159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 225940159 is about 15031.3059645528. The cubic root of 225940159 is about 609.0661685739.

The spelling of 225940159 in words is "two hundred twenty-five million, nine hundred forty thousand, one hundred fifty-nine".