1296493769 has 8 divisors (see below), whose sum is σ = 1313632320. Its totient is φ = 1279465200.

The previous prime is 1296493753. The next prime is 1296493771. The reversal of 1296493769 is 9673946921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1296493769 - 2⁴ = 1296493753 is a prime.

It is a super-2 number, since 2×1296493769² = 3361792186111650722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1296493069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629 + ... + 51050.

It is an arithmetic number, because the mean of its divisors is an integer number (164204040).

Almost surely, 2^1296493769 is an apocalyptic number.

It is an amenable number.

1296493769 is a deficient number, since it is larger than the sum of its proper divisors (17138551).

1296493769 is a wasteful number, since it uses less digits than its factorization.

1296493769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54991.

The product of its digits is 4408992, while the sum is 56.

The square root of 1296493769 is about 36006.8572496962. The cubic root of 1296493769 is about 1090.4108007447.

The spelling of 1296493769 in words is "one billion, two hundred ninety-six million, four hundred ninety-three thousand, seven hundred sixty-nine".