12108732 has 12 divisors (see below), whose sum is σ = 28253736. Its totient is φ = 4036240.

The previous prime is 12108727. The next prime is 12108737. The reversal of 12108732 is 23780121.

It is an interprime number because it is at equal distance from previous prime (12108727) and next prime (12108737).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) 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 (12108737) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 504519 + ... + 504542.

It is an arithmetic number, because the mean of its divisors is an integer number (2354478).

Almost surely, 2^12108732 is an apocalyptic number.

12108732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12108732 is an abundant number, since it is smaller than the sum of its proper divisors (16145004).

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

12108732 is a wasteful number, since it uses less digits than its factorization.

12108732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009068 (or 1009066 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12108732 is about 3479.7603365749. The cubic root of 12108732 is about 229.6322541664.

Adding to 12108732 its reverse (23780121), we get a palindrome (35888853).

The spelling of 12108732 in words is "twelve million, one hundred eight thousand, seven hundred thirty-two".