225034981 has 2 divisors, whose sum is σ = 225034982. Its totient is φ = 225034980.

The previous prime is 225034963. The next prime is 225035033. The reversal of 225034981 is 189430522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169234081 + 55800900 = 13009^2 + 7470^2 .

It is a cyclic number.

It is not a de Polignac number, because 225034981 - 2²¹ = 222937829 is a prime.

It is a super-2 number, since 2×225034981² = 101281485347340722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225034951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112517490 + 112517491.

It is an arithmetic number, because the mean of its divisors is an integer number (112517491).

Almost surely, 2^225034981 is an apocalyptic number.

It is an amenable number.

225034981 is a deficient number, since it is larger than the sum of its proper divisors (1).

225034981 is an equidigital number, since it uses as much as digits as its factorization.

225034981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 225034981 is about 15001.1659880157. The cubic root of 225034981 is about 608.2517181474.

The spelling of 225034981 in words is "two hundred twenty-five million, thirty-four thousand, nine hundred eighty-one".