1296064579 has 4 divisors (see below), whose sum is σ = 1298200384. Its totient is φ = 1293928776.

The previous prime is 1296064573. The next prime is 1296064589. The reversal of 1296064579 is 9754606921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1296064579 - 2¹¹ = 1296062531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1296064573) 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, 1066992 + ... + 1068205.

It is an arithmetic number, because the mean of its divisors is an integer number (324550096).

Almost surely, 2^1296064579 is an apocalyptic number.

1296064579 is a deficient number, since it is larger than the sum of its proper divisors (2135805).

1296064579 is an equidigital number, since it uses as much as digits as its factorization.

1296064579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135804.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1296064579 is about 36000.8969193824. The cubic root of 1296064579 is about 1090.2904646316.

The spelling of 1296064579 in words is "one billion, two hundred ninety-six million, sixty-four thousand, five hundred seventy-nine".