274843249 has 2 divisors, whose sum is σ = 274843250. Its totient is φ = 274843248.

The previous prime is 274843211. The next prime is 274843271. The reversal of 274843249 is 942348472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255200625 + 19642624 = 15975^2 + 4432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274843249 is a prime.

It is not a weakly prime, because it can be changed into another prime (274823249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137421624 + 137421625.

It is an arithmetic number, because the mean of its divisors is an integer number (137421625).

Almost surely, 2^274843249 is an apocalyptic number.

It is an amenable number.

274843249 is a deficient number, since it is larger than the sum of its proper divisors (1).

274843249 is an equidigital number, since it uses as much as digits as its factorization.

274843249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 274843249 is about 16578.3970576169. The cubic root of 274843249 is about 650.1721429666.

The spelling of 274843249 in words is "two hundred seventy-four million, eight hundred forty-three thousand, two hundred forty-nine".