13705223 has 8 divisors (see below), whose sum is σ = 15692160. Its totient is φ = 11725560.

The previous prime is 13705187. The next prime is 13705231. The reversal of 13705223 is 32250731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13705223 - 2⁸ = 13704967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3128 + ... + 6098.

It is an arithmetic number, because the mean of its divisors is an integer number (1961520).

Almost surely, 2^13705223 is an apocalyptic number.

13705223 is a deficient number, since it is larger than the sum of its proper divisors (1986937).

13705223 is an equidigital number, since it uses as much as digits as its factorization.

13705223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13705223 is about 3702.0565905993. The cubic root of 13705223 is about 239.3106550121.

Adding to 13705223 its reverse (32250731), we get a palindrome (45955954).

The spelling of 13705223 in words is "thirteen million, seven hundred five thousand, two hundred twenty-three".