13223045 has 16 divisors (see below), whose sum is σ = 18064512. Its totient is φ = 9197760.

The previous prime is 13223039. The next prime is 13223051. The reversal of 13223045 is 54032231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13223039) and next prime (13223051).

It is not a de Polignac number, because 13223045 - 2⁴ = 13223029 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3962 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (1129032).

Almost surely, 2^13223045 is an apocalyptic number.

It is an amenable number.

13223045 is a deficient number, since it is larger than the sum of its proper divisors (4841467).

13223045 is a wasteful number, since it uses less digits than its factorization.

13223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10492.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13223045 is about 3636.3505056581. The cubic root of 13223045 is about 236.4706028983.

Adding to 13223045 its reverse (54032231), we get a palindrome (67255276).

The spelling of 13223045 in words is "thirteen million, two hundred twenty-three thousand, forty-five".