1274255243 has 2 divisors, whose sum is σ = 1274255244. Its totient is φ = 1274255242.

The previous prime is 1274255219. The next prime is 1274255261. The reversal of 1274255243 is 3425524721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1274255243 - 2⁸ = 1274254987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1274255293) 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, 637127621 + 637127622.

It is an arithmetic number, because the mean of its divisors is an integer number (637127622).

Almost surely, 2^1274255243 is an apocalyptic number.

1274255243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274255243 is an equidigital number, since it uses as much as digits as its factorization.

1274255243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 1274255243 is about 35696.7119354150. The cubic root of 1274255243 is about 1084.1402699140.

Adding to 1274255243 its reverse (3425524721), we get a palindrome (4699779964).

The spelling of 1274255243 in words is "one billion, two hundred seventy-four million, two hundred fifty-five thousand, two hundred forty-three".