274613021 has 2 divisors, whose sum is σ = 274613022. Its totient is φ = 274613020.

The previous prime is 274613011. The next prime is 274613051. The reversal of 274613021 is 120316472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236728996 + 37884025 = 15386^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 274613021 - 2²² = 270418717 is a prime.

It is a super-2 number, since 2×274613021² = 150824622605492882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274613011) 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, 137306510 + 137306511.

It is an arithmetic number, because the mean of its divisors is an integer number (137306511).

Almost surely, 2^274613021 is an apocalyptic number.

It is an amenable number.

274613021 is a deficient number, since it is larger than the sum of its proper divisors (1).

274613021 is an equidigital number, since it uses as much as digits as its factorization.

274613021 is an odious number, because the sum of its binary digits is odd.

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

The square root of 274613021 is about 16571.4519882839. The cubic root of 274613021 is about 649.9905489750.

Adding to 274613021 its reverse (120316472), we get a palindrome (394929493).

The spelling of 274613021 in words is "two hundred seventy-four million, six hundred thirteen thousand, twenty-one".