12524609 has 4 divisors (see below), whose sum is σ = 12559104. Its totient is φ = 12490116.

The previous prime is 12524593. The next prime is 12524621. The reversal of 12524609 is 90642521.

It is a happy number.

12524609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12524609 - 2⁴ = 12524593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12524689) 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, 16697 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (3139776).

Almost surely, 2^12524609 is an apocalyptic number.

It is an amenable number.

12524609 is a deficient number, since it is larger than the sum of its proper divisors (34495).

12524609 is an equidigital number, since it uses as much as digits as its factorization.

12524609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34494.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12524609 is about 3539.0124328688. The cubic root of 12524609 is about 232.2316416574.

The spelling of 12524609 in words is "twelve million, five hundred twenty-four thousand, six hundred nine".