12132522 has 24 divisors (see below), whose sum is σ = 26999076. Its totient is φ = 3934656.

The previous prime is 12132499. The next prime is 12132529. The reversal of 12132522 is 22523121.

12132522 is a `hidden beast` number, since 12 + 132 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12047841 + 84681 = 3471^2 + 291^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12132495 and 12132504.

It is not an unprimeable number, because it can be changed into a prime (12132529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8443 + ... + 9774.

Almost surely, 2^12132522 is an apocalyptic number.

12132522 is an abundant number, since it is smaller than the sum of its proper divisors (14866554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12132522 is a wasteful number, since it uses less digits than its factorization.

12132522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18262 (or 18259 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12132522 is about 3483.1769980867. The cubic root of 12132522 is about 229.7825417865.

Adding to 12132522 its reverse (22523121), we get a palindrome (34655643).

The spelling of 12132522 in words is "twelve million, one hundred thirty-two thousand, five hundred twenty-two".