13313579 has 4 divisors (see below), whose sum is σ = 13328184. Its totient is φ = 13298976.

The previous prime is 13313569. The next prime is 13313591. The reversal of 13313579 is 97531331.

13313579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97531331 = 449 ⋅217219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13313579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13313569) 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, 5837 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (3332046).

Almost surely, 2^13313579 is an apocalyptic number.

13313579 is a deficient number, since it is larger than the sum of its proper divisors (14605).

13313579 is an equidigital number, since it uses as much as digits as its factorization.

13313579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14604.

The product of its digits is 8505, while the sum is 32.

The square root of 13313579 is about 3648.7777405592. Note that the first 4 decimals coincide. The cubic root of 13313579 is about 237.0090556576.

The spelling of 13313579 in words is "thirteen million, three hundred thirteen thousand, five hundred seventy-nine".