12542943 has 16 divisors (see below), whose sum is σ = 19255040. Its totient is φ = 7114176.

The previous prime is 12542939. The next prime is 12542947. The reversal of 12542943 is 34924521.

12542943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12542939) and next prime (12542947).

It is not a de Polignac number, because 12542943 - 2² = 12542939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12542943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (1203440).

Almost surely, 2^12542943 is an apocalyptic number.

12542943 is a deficient number, since it is larger than the sum of its proper divisors (6712097).

12542943 is a wasteful number, since it uses less digits than its factorization.

12542943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446.

The product of its digits is 8640, while the sum is 30.

The square root of 12542943 is about 3541.6017562679. The cubic root of 12542943 is about 232.3449029193.

The spelling of 12542943 in words is "twelve million, five hundred forty-two thousand, nine hundred forty-three".