12532609 has 4 divisors (see below), whose sum is σ = 13192240. Its totient is φ = 11872980.

The previous prime is 12532607. The next prime is 12532643. The reversal of 12532609 is 90623521.

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 12532609 - 2¹ = 12532607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12532607) 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, 329787 + ... + 329824.

It is an arithmetic number, because the mean of its divisors is an integer number (3298060).

Almost surely, 2^12532609 is an apocalyptic number.

12532609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12532609 is a deficient number, since it is larger than the sum of its proper divisors (659631).

12532609 is an equidigital number, since it uses as much as digits as its factorization.

12532609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659630.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12532609 is about 3540.1425112557. The cubic root of 12532609 is about 232.2810765396.

The spelling of 12532609 in words is "twelve million, five hundred thirty-two thousand, six hundred nine".