1274940343 has 2 divisors, whose sum is σ = 1274940344. Its totient is φ = 1274940342.

The previous prime is 1274940287. The next prime is 1274940349. The reversal of 1274940343 is 3430494721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1274940343 - 2¹³ = 1274932151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274940349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637470171 + 637470172.

It is an arithmetic number, because the mean of its divisors is an integer number (637470172).

Almost surely, 2^1274940343 is an apocalyptic number.

1274940343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274940343 is an equidigital number, since it uses as much as digits as its factorization.

1274940343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 1274940343 is about 35706.3067678527. The cubic root of 1274940343 is about 1084.3345301642.

The spelling of 1274940343 in words is "one billion, two hundred seventy-four million, nine hundred forty thousand, three hundred forty-three".