1296995329 has 16 divisors (see below), whose sum is σ = 1533838336. Its totient is φ = 1073217600.

The previous prime is 1296995327. The next prime is 1296995339. The reversal of 1296995329 is 9235996921.

It is not a de Polignac number, because 1296995329 - 2¹ = 1296995327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1296995329.

It is not an unprimeable number, because it can be changed into a prime (1296995327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84259 + ... + 98455.

It is an arithmetic number, because the mean of its divisors is an integer number (95864896).

Almost surely, 2^1296995329 is an apocalyptic number.

It is an amenable number.

1296995329 is a deficient number, since it is larger than the sum of its proper divisors (236843007).

1296995329 is a wasteful number, since it uses less digits than its factorization.

1296995329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14656.

The product of its digits is 2361960, while the sum is 55.

The square root of 1296995329 is about 36013.8213606943. The cubic root of 1296995329 is about 1090.5513942810.

The spelling of 1296995329 in words is "one billion, two hundred ninety-six million, nine hundred ninety-five thousand, three hundred twenty-nine".