12522543 has 16 divisors (see below), whose sum is σ = 18803712. Its totient is φ = 7344000.

The previous prime is 12522541. The next prime is 12522553. The reversal of 12522543 is 34522521.

12522543 = T₈₂ + T₈₃ + ... + T₄₂₂.

It is not a de Polignac number, because 12522543 - 2¹ = 12522541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522541) 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, 5098 + ... + 7143.

It is an arithmetic number, because the mean of its divisors is an integer number (1175232).

Almost surely, 2^12522543 is an apocalyptic number.

12522543 is a deficient number, since it is larger than the sum of its proper divisors (6281169).

12522543 is a wasteful number, since it uses less digits than its factorization.

12522543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286.

The product of its digits is 2400, while the sum is 24.

The square root of 12522543 is about 3538.7205314916. The cubic root of 12522543 is about 232.2188716791.

The spelling of 12522543 in words is "twelve million, five hundred twenty-two thousand, five hundred forty-three".