12343545 has 12 divisors (see below), whose sum is σ = 21395556. Its totient is φ = 6583200.

The previous prime is 12343543. The next prime is 12343553. The reversal of 12343545 is 54534321.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 9511056 = 1683^2 + 3084^2 .

It is not a de Polignac number, because 12343545 - 2¹ = 12343543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12343543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137106 + ... + 137195.

It is an arithmetic number, because the mean of its divisors is an integer number (1782963).

Almost surely, 2^12343545 is an apocalyptic number.

12343545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12343545 is a deficient number, since it is larger than the sum of its proper divisors (9052011).

12343545 is a wasteful number, since it uses less digits than its factorization.

12343545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274312 (or 274309 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 12343545 is about 3513.3381562269. The cubic root of 12343545 is about 231.1071072425.

Adding to 12343545 its reverse (54534321), we get a palindrome (66877866).

The spelling of 12343545 in words is "twelve million, three hundred forty-three thousand, five hundred forty-five".