12126525 has 24 divisors (see below), whose sum is σ = 21230784. Its totient is φ = 6086400.

The previous prime is 12126509. The next prime is 12126533. The reversal of 12126525 is 52562121.

It is a happy number.

12126525 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12126525 - 2⁴ = 12126509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12126495 and 12126504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3481 + ... + 6030.

It is an arithmetic number, because the mean of its divisors is an integer number (884616).

Almost surely, 2^12126525 is an apocalyptic number.

12126525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12126525 is a deficient number, since it is larger than the sum of its proper divisors (9104259).

12126525 is a wasteful number, since it uses less digits than its factorization.

12126525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9541 (or 9536 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 12126525 is about 3482.3160396495. The cubic root of 12126525 is about 229.7446757102.

Adding to 12126525 its reverse (52562121), we get a palindrome (64688646).

The spelling of 12126525 in words is "twelve million, one hundred twenty-six thousand, five hundred twenty-five".