13223105 has 16 divisors (see below), whose sum is σ = 18195840. Its totient is φ = 9036672.

The previous prime is 13223087. The next prime is 13223123. The reversal of 13223105 is 50132231.

13223105 = 139² + 140² + ... + 348².

It is an interprime number because it is at equal distance from previous prime (13223087) and next prime (13223123).

It is a cyclic number.

It is not a de Polignac number, because 13223105 - 2⁸ = 13222849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15941 + ... + 16749.

It is an arithmetic number, because the mean of its divisors is an integer number (1137240).

Almost surely, 2^13223105 is an apocalyptic number.

It is an amenable number.

13223105 is a deficient number, since it is larger than the sum of its proper divisors (4972735).

13223105 is an equidigital number, since it uses as much as digits as its factorization.

13223105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13223105 is about 3636.3587556785. The cubic root of 13223105 is about 236.4709605622.

Adding to 13223105 its reverse (50132231), we get a palindrome (63355336).

The spelling of 13223105 in words is "thirteen million, two hundred twenty-three thousand, one hundred five".