12464591 has 4 divisors (see below), whose sum is σ = 12486000. Its totient is φ = 12443184.

The previous prime is 12464581. The next prime is 12464611. The reversal of 12464591 is 19546421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12464591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464561) 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, 9806 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (3121500).

Almost surely, 2^12464591 is an apocalyptic number.

12464591 is a deficient number, since it is larger than the sum of its proper divisors (21409).

12464591 is an equidigital number, since it uses as much as digits as its factorization.

12464591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21408.

The product of its digits is 8640, while the sum is 32.

The square root of 12464591 is about 3530.5227658238. The cubic root of 12464591 is about 231.8600957429.

The spelling of 12464591 in words is "twelve million, four hundred sixty-four thousand, five hundred ninety-one".