274931 has 2 divisors, whose sum is σ = 274932. Its totient is φ = 274930.

The previous prime is 274909. The next prime is 274943. The reversal of 274931 is 139472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274931 - 2⁶ = 274867 is a prime.

It is a super-2 number, since 2×274931² = 151174109522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 274931.

It is not a weakly prime, because it can be changed into another prime (274951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137465 + 137466.

It is an arithmetic number, because the mean of its divisors is an integer number (137466).

2²⁷⁴⁹³¹ is an apocalyptic number.

274931 is a deficient number, since it is larger than the sum of its proper divisors (1).

274931 is an equidigital number, since it uses as much as digits as its factorization.

274931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 274931 is about 524.3386310391. The cubic root of 274931 is about 65.0241330507.

The spelling of 274931 in words is "two hundred seventy-four thousand, nine hundred thirty-one".