12231445 has 8 divisors (see below), whose sum is σ = 14725944. Its totient is φ = 9753024.

The previous prime is 12231433. The next prime is 12231463. The reversal of 12231445 is 54413221.

12231445 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 4 ways, for example, as 23409 + 12208036 = 153^2 + 3494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12231445 - 2⁵ = 12231413 is a prime.

It is a super-3 number, since 3×12231445³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (1840743).

Almost surely, 2^12231445 is an apocalyptic number.

It is an amenable number.

12231445 is a deficient number, since it is larger than the sum of its proper divisors (2494499).

12231445 is an equidigital number, since it uses as much as digits as its factorization.

12231445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039.

The product of its digits is 960, while the sum is 22.

The square root of 12231445 is about 3497.3482811982. The cubic root of 12231445 is about 230.4053657946.

Adding to 12231445 its reverse (54413221), we get a palindrome (66644666).

The spelling of 12231445 in words is "twelve million, two hundred thirty-one thousand, four hundred forty-five".