13445313 has 16 divisors (see below), whose sum is σ = 20630400. Its totient is φ = 7629696.

The previous prime is 13445309. The next prime is 13445321. The reversal of 13445313 is 31354431.

It is a happy number.

It is not a de Polignac number, because 13445313 - 2² = 13445309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13445353) 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, 981 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (1289400).

Almost surely, 2^13445313 is an apocalyptic number.

It is an amenable number.

13445313 is a deficient number, since it is larger than the sum of its proper divisors (7185087).

13445313 is a wasteful number, since it uses less digits than its factorization.

13445313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456.

The product of its digits is 2160, while the sum is 24.

The square root of 13445313 is about 3666.7851041478. The cubic root of 13445313 is about 237.7882034051.

Adding to 13445313 its reverse (31354431), we get a palindrome (44799744).

The spelling of 13445313 in words is "thirteen million, four hundred forty-five thousand, three hundred thirteen".