274612021 has 2 divisors, whose sum is σ = 274612022. Its totient is φ = 274612020.

The previous prime is 274612003. The next prime is 274612087. The reversal of 274612021 is 120216472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229855921 + 44756100 = 15161^2 + 6690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274612021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274612001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137306010 + 137306011.

It is an arithmetic number, because the mean of its divisors is an integer number (137306011).

Almost surely, 2^274612021 is an apocalyptic number.

It is an amenable number.

274612021 is a deficient number, since it is larger than the sum of its proper divisors (1).

274612021 is an equidigital number, since it uses as much as digits as its factorization.

274612021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 274612021 is about 16571.4218158853. The cubic root of 274612021 is about 649.9897599965.

Adding to 274612021 its reverse (120216472), we get a palindrome (394828493).

The spelling of 274612021 in words is "two hundred seventy-four million, six hundred twelve thousand, twenty-one".