12132506 has 8 divisors (see below), whose sum is σ = 18257844. Its totient is φ = 6046560.

The previous prime is 12132499. The next prime is 12132529. The reversal of 12132506 is 60523121.

12132506 = 1000² + 1001² + ... + 1011².

It can be written as a sum of positive squares in 2 ways, for example, as 11621281 + 511225 = 3409^2 + 715^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9065 + ... + 10316.

Almost surely, 2^12132506 is an apocalyptic number.

12132506 is a deficient number, since it is larger than the sum of its proper divisors (6125338).

12132506 is a wasteful number, since it uses less digits than its factorization.

12132506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19696.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12132506 is about 3483.1747013321. The cubic root of 12132506 is about 229.7824407763.

Adding to 12132506 its reverse (60523121), we get a palindrome (72655627).

The spelling of 12132506 in words is "twelve million, one hundred thirty-two thousand, five hundred six".