274085221 has 2 divisors, whose sum is σ = 274085222. Its totient is φ = 274085220.

The previous prime is 274085179. The next prime is 274085263. The reversal of 274085221 is 122580472.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (274085179) and next prime (274085263).

It can be written as a sum of positive squares in only one way, i.e., 255552196 + 18533025 = 15986^2 + 4305^2 .

It is a cyclic number.

It is not a de Polignac number, because 274085221 - 2⁷ = 274085093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274085281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137042610 + 137042611.

It is an arithmetic number, because the mean of its divisors is an integer number (137042611).

Almost surely, 2^274085221 is an apocalyptic number.

It is an amenable number.

274085221 is a deficient number, since it is larger than the sum of its proper divisors (1).

274085221 is an equidigital number, since it uses as much as digits as its factorization.

274085221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 274085221 is about 16555.5193515637. The cubic root of 274085221 is about 649.5738595391.

The spelling of 274085221 in words is "two hundred seventy-four million, eighty-five thousand, two hundred twenty-one".