13223535 has 32 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 6125568.

The previous prime is 13223527. The next prime is 13223549. The reversal of 13223535 is 53532231.

It is a happy number.

It is not a de Polignac number, because 13223535 - 2³ = 13223527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^13223535 is an apocalyptic number.

13223535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13223535 is a deficient number, since it is larger than the sum of its proper divisors (10907985).

13223535 is a wasteful number, since it uses less digits than its factorization.

13223535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027.

The product of its digits is 2700, while the sum is 24.

The square root of 13223535 is about 3636.4178802772. The cubic root of 13223535 is about 236.4735237880.

Adding to 13223535 its reverse (53532231), we get a palindrome (66755766).

The spelling of 13223535 in words is "thirteen million, two hundred twenty-three thousand, five hundred thirty-five".