12371225 has 6 divisors (see below), whose sum is σ = 15340350. Its totient is φ = 9896960.

The previous prime is 12371221. The next prime is 12371231. The reversal of 12371225 is 52217321.

It is a happy number.

12371225 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 1936 + 12369289 = 44^2 + 3517^2 .

It is not a de Polignac number, because 12371225 - 2² = 12371221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12371225.

It is not an unprimeable number, because it can be changed into a prime (12371221) 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, 247400 + ... + 247449.

It is an arithmetic number, because the mean of its divisors is an integer number (2556725).

Almost surely, 2^12371225 is an apocalyptic number.

It is an amenable number.

12371225 is a deficient number, since it is larger than the sum of its proper divisors (2969125).

12371225 is an equidigital number, since it uses as much as digits as its factorization.

12371225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494859 (or 494854 counting only the distinct ones).

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

The square root of 12371225 is about 3517.2752238061. The cubic root of 12371225 is about 231.2797283427.

Adding to 12371225 its reverse (52217321), we get a palindrome (64588546).

The spelling of 12371225 in words is "twelve million, three hundred seventy-one thousand, two hundred twenty-five".