13561223 has 8 divisors (see below), whose sum is σ = 15463728. Its totient is φ = 11781504.

The previous prime is 13561199. The next prime is 13561259. The reversal of 13561223 is 32216531.

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

It is a cyclic number.

It is not a de Polignac number, because 13561223 - 2¹⁰ = 13560199 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 (13561523) 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, 30461 + ... + 30902.

It is an arithmetic number, because the mean of its divisors is an integer number (1932966).

Almost surely, 2^13561223 is an apocalyptic number.

13561223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13561223 is a deficient number, since it is larger than the sum of its proper divisors (1902505).

13561223 is a wasteful number, since it uses less digits than its factorization.

13561223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61393.

The product of its digits is 1080, while the sum is 23.

The square root of 13561223 is about 3682.5565847655. The cubic root of 13561223 is about 238.4695611672.

Adding to 13561223 its reverse (32216531), we get a palindrome (45777754).

The spelling of 13561223 in words is "thirteen million, five hundred sixty-one thousand, two hundred twenty-three".