274630549 has 2 divisors, whose sum is σ = 274630550. Its totient is φ = 274630548.

The previous prime is 274630537. The next prime is 274630553. The reversal of 274630549 is 945036472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270602500 + 4028049 = 16450^2 + 2007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274630549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274630589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137315274 + 137315275.

It is an arithmetic number, because the mean of its divisors is an integer number (137315275).

Almost surely, 2^274630549 is an apocalyptic number.

It is an amenable number.

274630549 is a deficient number, since it is larger than the sum of its proper divisors (1).

274630549 is an equidigital number, since it uses as much as digits as its factorization.

274630549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 274630549 is about 16571.9808411668. The cubic root of 274630549 is about 650.0043778798.

The spelling of 274630549 in words is "two hundred seventy-four million, six hundred thirty thousand, five hundred forty-nine".