12147136 has 14 divisors (see below), whose sum is σ = 24104600. Its totient is φ = 6073536.

The previous prime is 12147131. The next prime is 12147139. The reversal of 12147136 is 63174121.

It is a self number, because there is not a number n which added to its sum of digits gives 12147136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94836 + ... + 94963.

Almost surely, 2^12147136 is an apocalyptic number.

12147136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12147136 is a deficient number, since it is larger than the sum of its proper divisors (11957464).

12147136 is an equidigital number, since it uses as much as digits as its factorization.

12147136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189811 (or 189801 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 12147136 is about 3485.2741642516. The cubic root of 12147136 is about 229.8747648400.

The spelling of 12147136 in words is "twelve million, one hundred forty-seven thousand, one hundred thirty-six".