274885921 has 2 divisors, whose sum is σ = 274885922. Its totient is φ = 274885920.

The previous prime is 274885909. The next prime is 274885927. The reversal of 274885921 is 129588472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197093521 + 77792400 = 14039^2 + 8820^2 .

It is a cyclic number.

It is not a de Polignac number, because 274885921 - 2¹⁵ = 274853153 is a prime.

It is not a weakly prime, because it can be changed into another prime (274885927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137442960 + 137442961.

It is an arithmetic number, because the mean of its divisors is an integer number (137442961).

Almost surely, 2^274885921 is an apocalyptic number.

It is an amenable number.

274885921 is a deficient number, since it is larger than the sum of its proper divisors (1).

274885921 is an equidigital number, since it uses as much as digits as its factorization.

274885921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 46.

The square root of 274885921 is about 16579.6839837194. The cubic root of 274885921 is about 650.2057896726.

The spelling of 274885921 in words is "two hundred seventy-four million, eight hundred eighty-five thousand, nine hundred twenty-one".