12042005 has 8 divisors (see below), whose sum is σ = 14474400. Its totient is φ = 9617616.

The previous prime is 12041999. The next prime is 12042053. The reversal of 12042005 is 50024021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12042005 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (1809300).

Almost surely, 2^12042005 is an apocalyptic number.

It is an amenable number.

12042005 is a deficient number, since it is larger than the sum of its proper divisors (2432395).

12042005 is an equidigital number, since it uses as much as digits as its factorization.

12042005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12042005 is about 3470.1592182492. The cubic root of 12042005 is about 229.2096692121.

Adding to 12042005 its reverse (50024021), we get a palindrome (62066026).

The spelling of 12042005 in words is "twelve million, forty-two thousand, five".