12612043 has 4 divisors (see below), whose sum is σ = 12723768. Its totient is φ = 12500320.

The previous prime is 12612001. The next prime is 12612091. The reversal of 12612043 is 34021621.

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-12612043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12612043.

It is not an unprimeable number, because it can be changed into a prime (12612343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55693 + ... + 55918.

It is an arithmetic number, because the mean of its divisors is an integer number (3180942).

Almost surely, 2^12612043 is an apocalyptic number.

12612043 is a deficient number, since it is larger than the sum of its proper divisors (111725).

12612043 is a wasteful number, since it uses less digits than its factorization.

12612043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111724.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12612043 is about 3551.3438301578. The cubic root of 12612043 is about 232.7707902067.

Adding to 12612043 its reverse (34021621), we get a palindrome (46633664).

The spelling of 12612043 in words is "twelve million, six hundred twelve thousand, forty-three".