1296793905 has 24 divisors (see below), whose sum is σ = 2280645696. Its totient is φ = 628747680.

The previous prime is 1296793903. The next prime is 1296793907. The reversal of 1296793905 is 5093976921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1296793903) and next prime (1296793907).

It is not a de Polignac number, because 1296793905 - 2¹ = 1296793903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1296793903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355429 + ... + 359058.

It is an arithmetic number, because the mean of its divisors is an integer number (95026904).

Almost surely, 2^1296793905 is an apocalyptic number.

1296793905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1296793905 is a deficient number, since it is larger than the sum of its proper divisors (983851791).

1296793905 is a wasteful number, since it uses less digits than its factorization.

1296793905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714517 (or 714506 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 1296793905 is about 36011.0247702006. The cubic root of 1296793905 is about 1090.4949369725.

The spelling of 1296793905 in words is "one billion, two hundred ninety-six million, seven hundred ninety-three thousand, nine hundred five".