13224705 has 16 divisors (see below), whose sum is σ = 22787520. Its totient is φ = 6510528.

The previous prime is 13224697. The next prime is 13224713. The reversal of 13224705 is 50742231.

It is an interprime number because it is at equal distance from previous prime (13224697) and next prime (13224713).

It is not a de Polignac number, because 13224705 - 2³ = 13224697 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33715 + ... + 34104.

It is an arithmetic number, because the mean of its divisors is an integer number (1424220).

Almost surely, 2^13224705 is an apocalyptic number.

13224705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13224705 is a deficient number, since it is larger than the sum of its proper divisors (9562815).

13224705 is a wasteful number, since it uses less digits than its factorization.

13224705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67840.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 13224705 is about 3636.5787493192. The cubic root of 13224705 is about 236.4804978652.

Adding to 13224705 its reverse (50742231), we get a palindrome (63966936).

The spelling of 13224705 in words is "thirteen million, two hundred twenty-four thousand, seven hundred five".