12343591 has 6 divisors (see below), whose sum is σ = 13366320. Its totient is φ = 11393928.

The previous prime is 12343577. The next prime is 12343601. The reversal of 12343591 is 19534321.

It is not a de Polignac number, because 12343591 - 2¹¹ = 12341543 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 (12343291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36351 + ... + 36688.

It is an arithmetic number, because the mean of its divisors is an integer number (2227720).

Almost surely, 2^12343591 is an apocalyptic number.

12343591 is a deficient number, since it is larger than the sum of its proper divisors (1022729).

12343591 is an equidigital number, since it uses as much as digits as its factorization.

12343591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73065 (or 73052 counting only the distinct ones).

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

The square root of 12343591 is about 3513.3447027014. The cubic root of 12343591 is about 231.1073943268.

The spelling of 12343591 in words is "twelve million, three hundred forty-three thousand, five hundred ninety-one".