1274305213 has 2 divisors, whose sum is σ = 1274305214. Its totient is φ = 1274305212.

The previous prime is 1274305147. The next prime is 1274305237. The reversal of 1274305213 is 3125034721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 920940409 + 353364804 = 30347^2 + 18798^2 .

It is an emirp because it is prime and its reverse (3125034721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1274305213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274305283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637152606 + 637152607.

It is an arithmetic number, because the mean of its divisors is an integer number (637152607).

Almost surely, 2^1274305213 is an apocalyptic number.

It is an amenable number.

1274305213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274305213 is an equidigital number, since it uses as much as digits as its factorization.

1274305213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1274305213 is about 35697.4118529621. The cubic root of 1274305213 is about 1084.1544412718.

Adding to 1274305213 its reverse (3125034721), we get a palindrome (4399339934).

The spelling of 1274305213 in words is "one billion, two hundred seventy-four million, three hundred five thousand, two hundred thirteen".