12135343 has 4 divisors (see below), whose sum is σ = 13238568. Its totient is φ = 11032120.

The previous prime is 12135337. The next prime is 12135349. The reversal of 12135343 is 34353121.

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

It is an interprime number because it is at equal distance from previous prime (12135337) and next prime (12135349).

It is not a de Polignac number, because 12135343 - 2⁹ = 12134831 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 (12135349) 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, 551596 + ... + 551617.

It is an arithmetic number, because the mean of its divisors is an integer number (3309642).

Almost surely, 2^12135343 is an apocalyptic number.

12135343 is a deficient number, since it is larger than the sum of its proper divisors (1103225).

12135343 is a wasteful number, since it uses less digits than its factorization.

12135343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103224.

The product of its digits is 1080, while the sum is 22.

The square root of 12135343 is about 3483.5819209544. The cubic root of 12135343 is about 229.8003497442.

Adding to 12135343 its reverse (34353121), we get a palindrome (46488464).

It can be divided in two parts, 1213 and 5343, that added together give a palindrome (6556).

The spelling of 12135343 in words is "twelve million, one hundred thirty-five thousand, three hundred forty-three".