1494369281 has 2 divisors, whose sum is σ = 1494369282. Its totient is φ = 1494369280.

The previous prime is 1494369223. The next prime is 1494369313. The reversal of 1494369281 is 1829634941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963481600 + 530887681 = 31040^2 + 23041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494369281 - 2¹⁰ = 1494368257 is a prime.

It is a super-2 number, since 2×1494369281² = 4466279095992913922, 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 (1494369221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747184640 + 747184641.

It is an arithmetic number, because the mean of its divisors is an integer number (747184641).

Almost surely, 2^1494369281 is an apocalyptic number.

It is an amenable number.

1494369281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494369281 is an equidigital number, since it uses as much as digits as its factorization.

1494369281 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1494369281 is about 38657.0728457290. The cubic root of 1494369281 is about 1143.2800989436.

The spelling of 1494369281 in words is "one billion, four hundred ninety-four million, three hundred sixty-nine thousand, two hundred eighty-one".