12452513 has 4 divisors (see below), whose sum is σ = 12881940. Its totient is φ = 12023088.

The previous prime is 12452501. The next prime is 12452527. The reversal of 12452513 is 31525421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10163344 + 2289169 = 3188^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 12452513 - 2¹⁰ = 12451489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12452213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214670 + ... + 214727.

It is an arithmetic number, because the mean of its divisors is an integer number (3220485).

Almost surely, 2^12452513 is an apocalyptic number.

It is an amenable number.

12452513 is a deficient number, since it is larger than the sum of its proper divisors (429427).

12452513 is an equidigital number, since it uses as much as digits as its factorization.

12452513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429426.

The product of its digits is 1200, while the sum is 23.

The square root of 12452513 is about 3528.8118396990. The cubic root of 12452513 is about 231.7851818998.

Adding to 12452513 its reverse (31525421), we get a palindrome (43977934).

The spelling of 12452513 in words is "twelve million, four hundred fifty-two thousand, five hundred thirteen".