13223135 has 4 divisors (see below), whose sum is σ = 15867768. Its totient is φ = 10578504.

The previous prime is 13223123. The next prime is 13223173. The reversal of 13223135 is 53132231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13223135 - 2⁶ = 13223071 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 3 ways as a sum of consecutive naturals, for example, 1322309 + ... + 1322318.

It is an arithmetic number, because the mean of its divisors is an integer number (3966942).

Almost surely, 2^13223135 is an apocalyptic number.

13223135 is a deficient number, since it is larger than the sum of its proper divisors (2644633).

13223135 is an equidigital number, since it uses as much as digits as its factorization.

13223135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644632.

The product of its digits is 540, while the sum is 20.

The square root of 13223135 is about 3636.3628806817. The cubic root of 13223135 is about 236.4711393937.

Adding to 13223135 its reverse (53132231), we get a palindrome (66355366).

It can be divided in two parts, 13223 and 135, that multiplied together give a triangular number (1785105 = T₁₈₈₉).

The spelling of 13223135 in words is "thirteen million, two hundred twenty-three thousand, one hundred thirty-five".