13722235 has 4 divisors (see below), whose sum is σ = 16466688. Its totient is φ = 10977784.

The previous prime is 13722229. The next prime is 13722239. The reversal of 13722235 is 53222731.

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 13722235 - 2⁹ = 13721723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13722239) 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, 1372219 + ... + 1372228.

It is an arithmetic number, because the mean of its divisors is an integer number (4116672).

Almost surely, 2^13722235 is an apocalyptic number.

13722235 is a deficient number, since it is larger than the sum of its proper divisors (2744453).

13722235 is an equidigital number, since it uses as much as digits as its factorization.

13722235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744452.

The product of its digits is 2520, while the sum is 25.

The square root of 13722235 is about 3704.3535198466. The cubic root of 13722235 is about 239.4096311359.

Adding to 13722235 its reverse (53222731), we get a palindrome (66944966).

The spelling of 13722235 in words is "thirteen million, seven hundred twenty-two thousand, two hundred thirty-five".