274385291 has 2 divisors, whose sum is σ = 274385292. Its totient is φ = 274385290.

The previous prime is 274385263. The next prime is 274385299. The reversal of 274385291 is 192583472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274385291 - 2¹⁴ = 274368907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (274385299) 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, 137192645 + 137192646.

It is an arithmetic number, because the mean of its divisors is an integer number (137192646).

Almost surely, 2^274385291 is an apocalyptic number.

274385291 is a deficient number, since it is larger than the sum of its proper divisors (1).

274385291 is an equidigital number, since it uses as much as digits as its factorization.

274385291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 274385291 is about 16564.5794090885. The cubic root of 274385291 is about 649.8108254218.

The spelling of 274385291 in words is "two hundred seventy-four million, three hundred eighty-five thousand, two hundred ninety-one".