13022805 has 16 divisors (see below), whose sum is σ = 21041280. Its totient is φ = 6877248.

The previous prime is 13022803. The next prime is 13022831. The reversal of 13022805 is 50822031.

It is not a de Polignac number, because 13022805 - 2¹ = 13022803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (1315080).

Almost surely, 2^13022805 is an apocalyptic number.

13022805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13022805 is a deficient number, since it is larger than the sum of its proper divisors (8018475).

13022805 is a wasteful number, since it uses less digits than its factorization.

13022805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 13022805 is about 3608.7123742410. The cubic root of 13022805 is about 235.2708812409.

Adding to 13022805 its reverse (50822031), we get a palindrome (63844836).

The spelling of 13022805 in words is "thirteen million, twenty-two thousand, eight hundred five".