12182005 has 16 divisors (see below), whose sum is σ = 16213248. Its totient is φ = 8712000.

The previous prime is 12182003. The next prime is 12182033. The reversal of 12182005 is 50028121.

It is not a de Polignac number, because 12182005 - 2¹ = 12182003 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 (12182003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540 + ... + 5170.

It is an arithmetic number, because the mean of its divisors is an integer number (1013328).

Almost surely, 2^12182005 is an apocalyptic number.

It is an amenable number.

12182005 is a deficient number, since it is larger than the sum of its proper divisors (4031243).

12182005 is a wasteful number, since it uses less digits than its factorization.

12182005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12182005 is about 3490.2729119655. The cubic root of 12182005 is about 230.0945106232.

It can be divided in two parts, 1218 and 2005, that added together give a palindrome (3223).

The spelling of 12182005 in words is "twelve million, one hundred eighty-two thousand, five".