12132745 has 8 divisors (see below), whose sum is σ = 14587200. Its totient is φ = 9687600.

The previous prime is 12132739. The next prime is 12132763. The reversal of 12132745 is 54723121.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-12132745 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (1823400).

Almost surely, 2^12132745 is an apocalyptic number.

It is an amenable number.

12132745 is a deficient number, since it is larger than the sum of its proper divisors (2454455).

12132745 is an equidigital number, since it uses as much as digits as its factorization.

12132745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655.

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

The square root of 12132745 is about 3483.2090089456. The cubic root of 12132745 is about 229.7839496057.

Adding to 12132745 its reverse (54723121), we get a palindrome (66855866).

The spelling of 12132745 in words is "twelve million, one hundred thirty-two thousand, seven hundred forty-five".