13817345 has 8 divisors (see below), whose sum is σ = 17556264. Its totient is φ = 10403584.

The previous prime is 13817341. The next prime is 13817357. The reversal of 13817345 is 54371831.

It can be written as a sum of positive squares in 4 ways, for example, as 4355569 + 9461776 = 2087^2 + 3076^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13817345 - 2² = 13817341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13817341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81194 + ... + 81363.

It is an arithmetic number, because the mean of its divisors is an integer number (2194533).

Almost surely, 2^13817345 is an apocalyptic number.

It is an amenable number.

13817345 is a deficient number, since it is larger than the sum of its proper divisors (3738919).

13817345 is a wasteful number, since it uses less digits than its factorization.

13817345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162579.

The product of its digits is 10080, while the sum is 32.

The square root of 13817345 is about 3717.1689496174. The cubic root of 13817345 is about 239.9614810867.

The spelling of 13817345 in words is "thirteen million, eight hundred seventeen thousand, three hundred forty-five".