1204255 has 16 divisors (see below), whose sum is σ = 1580544. Its totient is φ = 875520.

The previous prime is 1204243. The next prime is 1204271. The reversal of 1204255 is 5524021.

It is not a de Polignac number, because 1204255 - 2¹⁷ = 1073183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6210 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (98784).

2^1204255 is an apocalyptic number.

1204255 is a deficient number, since it is larger than the sum of its proper divisors (376289).

1204255 is a wasteful number, since it uses less digits than its factorization.

1204255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1204255 is about 1097.3855293378. The cubic root of 1204255 is about 106.3913090966.

Adding to 1204255 its reverse (5524021), we get a palindrome (6728276).

The spelling of 1204255 in words is "one million, two hundred four thousand, two hundred fifty-five".