12087645 has 8 divisors (see below), whose sum is σ = 19340256. Its totient is φ = 6446736.

The previous prime is 12087623. The next prime is 12087653. The reversal of 12087645 is 54678021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12087645 - 2¹¹ = 12085597 is a prime.

It is a super-2 number, since 2×12087645² = 292222323292050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 402907 + ... + 402936.

It is an arithmetic number, because the mean of its divisors is an integer number (2417532).

Almost surely, 2^12087645 is an apocalyptic number.

12087645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12087645 is a deficient number, since it is larger than the sum of its proper divisors (7252611).

12087645 is an equidigital number, since it uses as much as digits as its factorization.

12087645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805851.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12087645 is about 3476.7290662345. The cubic root of 12087645 is about 229.4988774443.

The spelling of 12087645 in words is "twelve million, eighty-seven thousand, six hundred forty-five".