274548913 has 2 divisors, whose sum is σ = 274548914. Its totient is φ = 274548912.

The previous prime is 274548899. The next prime is 274548931. The reversal of 274548913 is 319845472.

Together with next prime (274548931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243110464 + 31438449 = 15592^2 + 5607^2 .

It is a cyclic number.

It is not a de Polignac number, because 274548913 - 2⁵ = 274548881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274548913.

It is not a weakly prime, because it can be changed into another prime (274548973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137274456 + 137274457.

It is an arithmetic number, because the mean of its divisors is an integer number (137274457).

Almost surely, 2^274548913 is an apocalyptic number.

It is an amenable number.

274548913 is a deficient number, since it is larger than the sum of its proper divisors (1).

274548913 is an equidigital number, since it uses as much as digits as its factorization.

274548913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 274548913 is about 16569.5175850113. The cubic root of 274548913 is about 649.9399652640.

The spelling of 274548913 in words is "two hundred seventy-four million, five hundred forty-eight thousand, nine hundred thirteen".