1304205 has 16 divisors (see below), whose sum is σ = 2385024. Its totient is φ = 596160.

The previous prime is 1304183. The next prime is 1304207. The reversal of 1304205 is 5024031.

It is not a de Polignac number, because 1304205 - 2⁹ = 1303693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304207) 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, 6106 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (149064).

2^1304205 is an apocalyptic number.

1304205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304205 is a deficient number, since it is larger than the sum of its proper divisors (1080819).

1304205 is a wasteful number, since it uses less digits than its factorization.

1304205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12436.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1304205 is about 1142.0179508221. The cubic root of 1304205 is about 109.2568361967.

Adding to 1304205 its reverse (5024031), we get a palindrome (6328236).

The spelling of 1304205 in words is "one million, three hundred four thousand, two hundred five".