12968534 has 4 divisors (see below), whose sum is σ = 19452804. Its totient is φ = 6484266.

The previous prime is 12968533. The next prime is 12968551. The reversal of 12968534 is 43586921.

It is a happy number.

12968534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12968531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242132 + ... + 3242135.

It is an arithmetic number, because the mean of its divisors is an integer number (4863201).

Almost surely, 2^12968534 is an apocalyptic number.

12968534 is a deficient number, since it is larger than the sum of its proper divisors (6484270).

12968534 is an equidigital number, since it uses as much as digits as its factorization.

12968534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484269.

The product of its digits is 51840, while the sum is 38.

The square root of 12968534 is about 3601.1850827193. The cubic root of 12968534 is about 234.9436049977.

The spelling of 12968534 in words is "twelve million, nine hundred sixty-eight thousand, five hundred thirty-four".