1204005 has 16 divisors (see below), whose sum is σ = 2101824. Its totient is φ = 583680.

The previous prime is 1204003. The next prime is 1204019. The reversal of 1204005 is 5004021.

It is not a de Polignac number, because 1204005 - 2¹ = 1204003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3484 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (131364).

2^1204005 is an apocalyptic number.

1204005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1204005 is a deficient number, since it is larger than the sum of its proper divisors (897819).

1204005 is a wasteful number, since it uses less digits than its factorization.

1204005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1204005 is about 1097.2716163284. The cubic root of 1204005 is about 106.3839464068.

Adding to 1204005 its reverse (5004021), we get a palindrome (6208026).

The spelling of 1204005 in words is "one million, two hundred four thousand, five".