225001291 has 2 divisors, whose sum is σ = 225001292. Its totient is φ = 225001290.

The previous prime is 225001237. The next prime is 225001303. The reversal of 225001291 is 192100522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225001291 - 2⁷ = 225001163 is a prime.

It is not a weakly prime, because it can be changed into another prime (225001991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112500645 + 112500646.

It is an arithmetic number, because the mean of its divisors is an integer number (112500646).

Almost surely, 2^225001291 is an apocalyptic number.

225001291 is a deficient number, since it is larger than the sum of its proper divisors (1).

225001291 is an equidigital number, since it uses as much as digits as its factorization.

225001291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 225001291 is about 15000.0430332716. The cubic root of 225001291 is about 608.2213628326.

The spelling of 225001291 in words is "two hundred twenty-five million, one thousand, two hundred ninety-one".