1274420293 has 2 divisors, whose sum is σ = 1274420294. Its totient is φ = 1274420292.

The previous prime is 1274420239. The next prime is 1274420297. The reversal of 1274420293 is 3920244721.

Together with previous prime (1274420239) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231097569 + 43322724 = 35087^2 + 6582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274420293 - 2⁹ = 1274419781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274420297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637210146 + 637210147.

It is an arithmetic number, because the mean of its divisors is an integer number (637210147).

Almost surely, 2^1274420293 is an apocalyptic number.

It is an amenable number.

1274420293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274420293 is an equidigital number, since it uses as much as digits as its factorization.

1274420293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1274420293 is about 35699.0236981349. The cubic root of 1274420293 is about 1084.1870762419.

The spelling of 1274420293 in words is "one billion, two hundred seventy-four million, four hundred twenty thousand, two hundred ninety-three".