12645534 has 16 divisors (see below), whose sum is σ = 27590400. Its totient is φ = 3831960.

The previous prime is 12645533. The next prime is 12645547. The reversal of 12645534 is 43554621.

12645534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95734 + ... + 95865.

It is an arithmetic number, because the mean of its divisors is an integer number (1724400).

Almost surely, 2^12645534 is an apocalyptic number.

12645534 is an abundant number, since it is smaller than the sum of its proper divisors (14944866).

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

12645534 is a wasteful number, since it uses less digits than its factorization.

12645534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191615.

The product of its digits is 14400, while the sum is 30.

The square root of 12645534 is about 3556.0559613144. The cubic root of 12645534 is about 232.9766473185.

It can be divided in two parts, 12 and 645534, that added together give a palindrome (645546).

The spelling of 12645534 in words is "twelve million, six hundred forty-five thousand, five hundred thirty-four".