1296329 has 4 divisors (see below), whose sum is σ = 1341060. Its totient is φ = 1251600.

The previous prime is 1296319. The next prime is 1296331. The reversal of 1296329 is 9236921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204304 + 1092025 = 452^2 + 1045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1296329 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1296295 and 1296304.

It is not an unprimeable number, because it can be changed into a prime (1296319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22322 + ... + 22379.

It is an arithmetic number, because the mean of its divisors is an integer number (335265).

2^1296329 is an apocalyptic number.

It is an amenable number.

1296329 is a deficient number, since it is larger than the sum of its proper divisors (44731).

1296329 is an equidigital number, since it uses as much as digits as its factorization.

1296329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44730.

The product of its digits is 5832, while the sum is 32.

The square root of 1296329 is about 1138.5644470121. The cubic root of 1296329 is about 109.0364606022.

The spelling of 1296329 in words is "one million, two hundred ninety-six thousand, three hundred twenty-nine".