12132547 has 6 divisors (see below), whose sum is σ = 14113428. Its totient is φ = 10399284.

The previous prime is 12132529. The next prime is 12132553. The reversal of 12132547 is 74523121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12132547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12132557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123753 + ... + 123850.

It is an arithmetic number, because the mean of its divisors is an integer number (2352238).

Almost surely, 2^12132547 is an apocalyptic number.

12132547 is a deficient number, since it is larger than the sum of its proper divisors (1980881).

12132547 is an equidigital number, since it uses as much as digits as its factorization.

12132547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247617 (or 247610 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 12132547 is about 3483.1805867626. The cubic root of 12132547 is about 229.7826996146.

Adding to 12132547 its reverse (74523121), we get a palindrome (86655668).

The spelling of 12132547 in words is "twelve million, one hundred thirty-two thousand, five hundred forty-seven".