12534487 has 4 divisors (see below), whose sum is σ = 14325136. Its totient is φ = 10743840.

The previous prime is 12534461. The next prime is 12534523. The reversal of 12534487 is 78443521.

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 12534487 - 2¹¹ = 12532439 is a prime.

It is a super-2 number, since 2×12534487² = 314226728706338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12514487) 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, 895314 + ... + 895327.

It is an arithmetic number, because the mean of its divisors is an integer number (3581284).

Almost surely, 2^12534487 is an apocalyptic number.

12534487 is a deficient number, since it is larger than the sum of its proper divisors (1790649).

12534487 is an equidigital number, since it uses as much as digits as its factorization.

12534487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790648.

The product of its digits is 26880, while the sum is 34.

The square root of 12534487 is about 3540.4077448791. The cubic root of 12534487 is about 232.2926783291.

The spelling of 12534487 in words is "twelve million, five hundred thirty-four thousand, four hundred eighty-seven".