225104281 has 2 divisors, whose sum is σ = 225104282. Its totient is φ = 225104280.

The previous prime is 225104261. The next prime is 225104317. The reversal of 225104281 is 182401522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189998656 + 35105625 = 13784^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 225104281 - 2¹³ = 225096089 is a prime.

It is a super-2 number, since 2×225104281² = 101343874649053922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225104261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112552140 + 112552141.

It is an arithmetic number, because the mean of its divisors is an integer number (112552141).

Almost surely, 2^225104281 is an apocalyptic number.

It is an amenable number.

225104281 is a deficient number, since it is larger than the sum of its proper divisors (1).

225104281 is an equidigital number, since it uses as much as digits as its factorization.

225104281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 225104281 is about 15003.4756306664. The cubic root of 225104281 is about 608.3141492084.

The spelling of 225104281 in words is "two hundred twenty-five million, one hundred four thousand, two hundred eighty-one".