12513543 has 16 divisors (see below), whose sum is σ = 19249920. Its totient is φ = 7082496.

The previous prime is 12513517. The next prime is 12513563. The reversal of 12513543 is 34531521.

It is not a de Polignac number, because 12513543 - 2⁸ = 12513287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513503) 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, 538 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (1203120).

Almost surely, 2^12513543 is an apocalyptic number.

12513543 is a deficient number, since it is larger than the sum of its proper divisors (6736377).

12513543 is a wasteful number, since it uses less digits than its factorization.

12513543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686.

The product of its digits is 1800, while the sum is 24.

The square root of 12513543 is about 3537.4486568712. The cubic root of 12513543 is about 232.1632261462.

The spelling of 12513543 in words is "twelve million, five hundred thirteen thousand, five hundred forty-three".