1294776493 has 2 divisors, whose sum is σ = 1294776494. Its totient is φ = 1294776492.

The previous prime is 1294776481. The next prime is 1294776517. The reversal of 1294776493 is 3946774921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944824644 + 349951849 = 30738^2 + 18707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1294776493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1294776493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1294776443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647388246 + 647388247.

It is an arithmetic number, because the mean of its divisors is an integer number (647388247).

Almost surely, 2^1294776493 is an apocalyptic number.

It is an amenable number.

1294776493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294776493 is an equidigital number, since it uses as much as digits as its factorization.

1294776493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The square root of 1294776493 is about 35983.0028346718. The cubic root of 1294776493 is about 1089.9291520318.

The spelling of 1294776493 in words is "one billion, two hundred ninety-four million, seven hundred seventy-six thousand, four hundred ninety-three".