12345572 has 12 divisors (see below), whose sum is σ = 22544256. Its totient is φ = 5904360.

The previous prime is 12345569. The next prime is 12345577. The reversal of 12345572 is 27554321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12345577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67004 + ... + 67187.

It is an arithmetic number, because the mean of its divisors is an integer number (1878688).

Almost surely, 2^12345572 is an apocalyptic number.

It is an amenable number.

12345572 is a deficient number, since it is larger than the sum of its proper divisors (10198684).

12345572 is a wasteful number, since it uses less digits than its factorization.

12345572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134218 (or 134216 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 12345572 is about 3513.6266164748. The cubic root of 12345572 is about 231.1197569977.

Adding to 12345572 its reverse (27554321), we get a palindrome (39899893).

The spelling of 12345572 in words is "twelve million, three hundred forty-five thousand, five hundred seventy-two".