1294894361 has 2 divisors, whose sum is σ = 1294894362. Its totient is φ = 1294894360.

The previous prime is 1294894343. The next prime is 1294894387. The reversal of 1294894361 is 1634984921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804006025 + 490888336 = 28355^2 + 22156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294894361 - 2⁶ = 1294894297 is a prime.

It is a super-2 number, since 2×1294894361² = 3353502812299196642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1294894261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647447180 + 647447181.

It is an arithmetic number, because the mean of its divisors is an integer number (647447181).

Almost surely, 2^1294894361 is an apocalyptic number.

It is an amenable number.

1294894361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294894361 is an equidigital number, since it uses as much as digits as its factorization.

1294894361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 1294894361 is about 35984.6406262450. The cubic root of 1294894361 is about 1089.9622243733.

The spelling of 1294894361 in words is "one billion, two hundred ninety-four million, eight hundred ninety-four thousand, three hundred sixty-one".