12125564 has 12 divisors (see below), whose sum is σ = 23148888. Its totient is φ = 5511600.

The previous prime is 12125563. The next prime is 12125569. The reversal of 12125564 is 46552121.

12125564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137747 + ... + 137834.

It is an arithmetic number, because the mean of its divisors is an integer number (1929074).

Almost surely, 2^12125564 is an apocalyptic number.

It is an amenable number.

12125564 is a deficient number, since it is larger than the sum of its proper divisors (11023324).

12125564 is a wasteful number, since it uses less digits than its factorization.

12125564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275596 (or 275594 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 12125564 is about 3482.1780540346. The cubic root of 12125564 is about 229.7386066325.

Adding to 12125564 its reverse (46552121), we get a palindrome (58677685).

It can be divided in two parts, 1212 and 5564, that added together give a palindrome (6776).

The spelling of 12125564 in words is "twelve million, one hundred twenty-five thousand, five hundred sixty-four".