12182087 has 4 divisors (see below), whose sum is σ = 12207000. Its totient is φ = 12157176.

The previous prime is 12182077. The next prime is 12182089. The reversal of 12182087 is 78028121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12182087 - 2¹⁰ = 12181063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12182089) 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, 11708 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (3051750).

Almost surely, 2^12182087 is an apocalyptic number.

12182087 is a deficient number, since it is larger than the sum of its proper divisors (24913).

12182087 is an equidigital number, since it uses as much as digits as its factorization.

12182087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24912.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12182087 is about 3490.2846588781. The cubic root of 12182087 is about 230.0950268958.

The spelling of 12182087 in words is "twelve million, one hundred eighty-two thousand, eighty-seven".