12534047 has 4 divisors (see below), whose sum is σ = 12624360. Its totient is φ = 12443736.

The previous prime is 12534037. The next prime is 12534059. The reversal of 12534047 is 74043521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12534047 - 2¹⁰ = 12533023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44948 + ... + 45225.

It is an arithmetic number, because the mean of its divisors is an integer number (3156090).

Almost surely, 2^12534047 is an apocalyptic number.

12534047 is a deficient number, since it is larger than the sum of its proper divisors (90313).

12534047 is an equidigital number, since it uses as much as digits as its factorization.

12534047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90312.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 12534047 is about 3540.3456045985. The cubic root of 12534047 is about 232.2899602289.

Adding to 12534047 its reverse (74043521), we get a palindrome (86577568).

The spelling of 12534047 in words is "twelve million, five hundred thirty-four thousand, forty-seven".