12187153 has 4 divisors (see below), whose sum is σ = 13295088. Its totient is φ = 11079220.

The previous prime is 12187121. The next prime is 12187183. The reversal of 12187153 is 35178121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35178121 = 11 ⋅3198011.

It is a cyclic number.

It is not a de Polignac number, because 12187153 - 2⁵ = 12187121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12187183) 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, 553951 + ... + 553972.

It is an arithmetic number, because the mean of its divisors is an integer number (3323772).

Almost surely, 2^12187153 is an apocalyptic number.

It is an amenable number.

12187153 is a deficient number, since it is larger than the sum of its proper divisors (1107935).

12187153 is a wasteful number, since it uses less digits than its factorization.

12187153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107934.

The product of its digits is 1680, while the sum is 28.

The square root of 12187153 is about 3491.0103122162. The cubic root of 12187153 is about 230.1269179793.

The spelling of 12187153 in words is "twelve million, one hundred eighty-seven thousand, one hundred fifty-three".