13801345 has 4 divisors (see below), whose sum is σ = 16561620. Its totient is φ = 11041072.

The previous prime is 13801327. The next prime is 13801351. The reversal of 13801345 is 54310831.

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 3154176 + 10647169 = 1776^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 13801345 - 2⁵ = 13801313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380130 + ... + 1380139.

It is an arithmetic number, because the mean of its divisors is an integer number (4140405).

Almost surely, 2^13801345 is an apocalyptic number.

It is an amenable number.

13801345 is a deficient number, since it is larger than the sum of its proper divisors (2760275).

13801345 is an equidigital number, since it uses as much as digits as its factorization.

13801345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760274.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13801345 is about 3715.0161507051. The cubic root of 13801345 is about 239.8688229915.

The spelling of 13801345 in words is "thirteen million, eight hundred one thousand, three hundred forty-five".