12000534 has 64 divisors (see below), whose sum is σ = 30535680. Its totient is φ = 3058560.

The previous prime is 12000523. The next prime is 12000551. The reversal of 12000534 is 43500021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16572 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (477120).

Almost surely, 2^12000534 is an apocalyptic number.

12000534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12000534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15267840).

12000534 is an abundant number, since it is smaller than the sum of its proper divisors (18535146).

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

12000534 is a wasteful number, since it uses less digits than its factorization.

12000534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12000534 is about 3464.1786905412. The cubic root of 12000534 is about 228.9462444459.

Adding to 12000534 its reverse (43500021), we get a palindrome (55500555).

The spelling of 12000534 in words is "twelve million, five hundred thirty-four", and thus it is an aban number.