13705227 has 16 divisors (see below), whose sum is σ = 20517280. Its totient is φ = 9040896.

The previous prime is 13705187. The next prime is 13705231. The reversal of 13705227 is 72250731.

13705227 is a `hidden beast` number, since 137 + 0 + 522 + 7 = 666.

It is not a de Polignac number, because 13705227 - 2⁶ = 13705163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13705227.

It is not an unprimeable number, because it can be changed into a prime (13705267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3 + ... + 5235.

It is an arithmetic number, because the mean of its divisors is an integer number (1282330).

Almost surely, 2^13705227 is an apocalyptic number.

13705227 is a deficient number, since it is larger than the sum of its proper divisors (6812053).

13705227 is an equidigital number, since it uses as much as digits as its factorization.

13705227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5333 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 13705227 is about 3702.0571308396. The cubic root of 13705227 is about 239.3106782938.

Adding to 13705227 its reverse (72250731), we get a palindrome (85955958).

The spelling of 13705227 in words is "thirteen million, seven hundred five thousand, two hundred twenty-seven".