274466221 has 2 divisors, whose sum is σ = 274466222. Its totient is φ = 274466220.

The previous prime is 274466209. The next prime is 274466239. The reversal of 274466221 is 122664472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190743721 + 83722500 = 13811^2 + 9150^2 .

It is a cyclic number.

It is not a de Polignac number, because 274466221 - 2⁵ = 274466189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274466201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137233110 + 137233111.

It is an arithmetic number, because the mean of its divisors is an integer number (137233111).

Almost surely, 2^274466221 is an apocalyptic number.

It is an amenable number.

274466221 is a deficient number, since it is larger than the sum of its proper divisors (1).

274466221 is an equidigital number, since it uses as much as digits as its factorization.

274466221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 274466221 is about 16567.0220920961. The cubic root of 274466221 is about 649.8747064220.

The spelling of 274466221 in words is "two hundred seventy-four million, four hundred sixty-six thousand, two hundred twenty-one".