12452005 has 8 divisors (see below), whose sum is σ = 14981400. Its totient is φ = 9935616.

The previous prime is 12451997. The next prime is 12452023. The reversal of 12452005 is 50025421.

It can be written as a sum of positive squares in 4 ways, for example, as 2070721 + 10381284 = 1439^2 + 3222^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12452005 - 2³ = 12451997 is a prime.

It is a congruent number.

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, 1000 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (1872675).

Almost surely, 2^12452005 is an apocalyptic number.

It is an amenable number.

12452005 is a deficient number, since it is larger than the sum of its proper divisors (2529395).

12452005 is an equidigital number, since it uses as much as digits as its factorization.

12452005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12452005 is about 3528.7398600634. The cubic root of 12452005 is about 231.7820299665.

Adding to 12452005 its reverse (50025421), we get a palindrome (62477426).

The spelling of 12452005 in words is "twelve million, four hundred fifty-two thousand, five".