13022005 has 4 divisors (see below), whose sum is σ = 15626412. Its totient is φ = 10417600.

The previous prime is 13022003. The next prime is 13022027. The reversal of 13022005 is 50022031.

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 4218916 + 8803089 = 2054^2 + 2967^2 .

It is not a de Polignac number, because 13022005 - 2¹ = 13022003 is a prime.

It is a super-2 number, since 2×13022005² = 339145228440050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022003) 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 3 ways as a sum of consecutive naturals, for example, 1302196 + ... + 1302205.

It is an arithmetic number, because the mean of its divisors is an integer number (3906603).

Almost surely, 2^13022005 is an apocalyptic number.

It is an amenable number.

13022005 is a deficient number, since it is larger than the sum of its proper divisors (2604407).

13022005 is an equidigital number, since it uses as much as digits as its factorization.

13022005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604406.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 13022005 is about 3608.6015296788. The cubic root of 13022005 is about 235.2660635241.

Adding to 13022005 its reverse (50022031), we get a palindrome (63044036).

The spelling of 13022005 in words is "thirteen million, twenty-two thousand, five".