12534678 has 96 divisors (see below), whose sum is σ = 32550336. Its totient is φ = 3446784.

The previous prime is 12534653. The next prime is 12534679. The reversal of 12534678 is 87643521.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534679) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91426 + ... + 91562.

It is an arithmetic number, because the mean of its divisors is an integer number (339066).

Almost surely, 2^12534678 is an apocalyptic number.

12534678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12534678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16275168).

12534678 is an abundant number, since it is smaller than the sum of its proper divisors (20015658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12534678 is a wasteful number, since it uses less digits than its factorization.

12534678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12534678 is about 3540.4347190705. The cubic root of 12534678 is about 232.2938582118.

The spelling of 12534678 in words is "twelve million, five hundred thirty-four thousand, six hundred seventy-eight".