274661243 has 2 divisors, whose sum is σ = 274661244. Its totient is φ = 274661242.

The previous prime is 274661227. The next prime is 274661263. The reversal of 274661243 is 342166472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274661243 - 2⁴ = 274661227 is a prime.

It is not a weakly prime, because it can be changed into another prime (274661203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137330621 + 137330622.

It is an arithmetic number, because the mean of its divisors is an integer number (137330622).

Almost surely, 2^274661243 is an apocalyptic number.

274661243 is a deficient number, since it is larger than the sum of its proper divisors (1).

274661243 is an equidigital number, since it uses as much as digits as its factorization.

274661243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 274661243 is about 16572.9068964983. The cubic root of 274661243 is about 650.0285928251.

The spelling of 274661243 in words is "two hundred seventy-four million, six hundred sixty-one thousand, two hundred forty-three".