274661 has 2 divisors, whose sum is σ = 274662. Its totient is φ = 274660.

The previous prime is 274627. The next prime is 274667. The reversal of 274661 is 166472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 30625 = 494^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 274661 - 2¹⁴ = 258277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 274661.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 274661.

It is not a weakly prime, because it can be changed into another prime (274667) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137330 + 137331.

It is an arithmetic number, because the mean of its divisors is an integer number (137331).

2²⁷⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

274661 is a deficient number, since it is larger than the sum of its proper divisors (1).

274661 is an equidigital number, since it uses as much as digits as its factorization.

274661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 274661 is about 524.0811005942. The cubic root of 274661 is about 65.0028401126.

The spelling of 274661 in words is "two hundred seventy-four thousand, six hundred sixty-one".