274492709 has 2 divisors, whose sum is σ = 274492710. Its totient is φ = 274492708.

The previous prime is 274492681. The next prime is 274492733. The reversal of 274492709 is 907294472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157377025 + 117115684 = 12545^2 + 10822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274492709 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274492709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274492739) 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, 137246354 + 137246355.

It is an arithmetic number, because the mean of its divisors is an integer number (137246355).

Almost surely, 2^274492709 is an apocalyptic number.

It is an amenable number.

274492709 is a deficient number, since it is larger than the sum of its proper divisors (1).

274492709 is an equidigital number, since it uses as much as digits as its factorization.

274492709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 274492709 is about 16567.8214922783. The cubic root of 274492709 is about 649.8956116388.

The spelling of 274492709 in words is "two hundred seventy-four million, four hundred ninety-two thousand, seven hundred nine".