13712225 has 6 divisors (see below), whose sum is σ = 17003190. Its totient is φ = 10969760.

The previous prime is 13712219. The next prime is 13712239. The reversal of 13712225 is 52221731.

It is a happy number.

13712225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 16 + 13712209 = 4^2 + 3703^2 .

It is not a de Polignac number, because 13712225 - 2⁶ = 13712161 is a prime.

It is a super-2 number, since 2×13712225² = 376050228901250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13712225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274220 + ... + 274269.

It is an arithmetic number, because the mean of its divisors is an integer number (2833865).

Almost surely, 2^13712225 is an apocalyptic number.

It is an amenable number.

13712225 is a deficient number, since it is larger than the sum of its proper divisors (3290965).

13712225 is an equidigital number, since it uses as much as digits as its factorization.

13712225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548499 (or 548494 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 13712225 is about 3703.0021604098. The cubic root of 13712225 is about 239.3514026872.

Adding to 13712225 its reverse (52221731), we get a palindrome (65933956).

The spelling of 13712225 in words is "thirteen million, seven hundred twelve thousand, two hundred twenty-five".