13727225 has 6 divisors (see below), whose sum is σ = 17021790. Its totient is φ = 10981760.

The previous prime is 13727209. The next prime is 13727227. The reversal of 13727225 is 52272731.

It can be written as a sum of positive squares in 3 ways, for example, as 1032256 + 12694969 = 1016^2 + 3563^2 .

It is not a de Polignac number, because 13727225 - 2⁴ = 13727209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13727227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274520 + ... + 274569.

It is an arithmetic number, because the mean of its divisors is an integer number (2836965).

Almost surely, 2^13727225 is an apocalyptic number.

It is an amenable number.

13727225 is a deficient number, since it is larger than the sum of its proper divisors (3294565).

13727225 is an equidigital number, since it uses as much as digits as its factorization.

13727225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549099 (or 549094 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 13727225 is about 3705.0269904550. The cubic root of 13727225 is about 239.4386475286.

Adding to 13727225 its reverse (52272731), we get a palindrome (65999956).

The spelling of 13727225 in words is "thirteen million, seven hundred twenty-seven thousand, two hundred twenty-five".