1204245 has 24 divisors (see below), whose sum is σ = 2386176. Its totient is φ = 550368.

The previous prime is 1204243. The next prime is 1204271. The reversal of 1204245 is 5424021.

It is not a de Polignac number, because 1204245 - 2¹ = 1204243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1597 + ... + 2226.

It is an arithmetic number, because the mean of its divisors is an integer number (99424).

2^1204245 is an apocalyptic number.

1204245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1204245 is a deficient number, since it is larger than the sum of its proper divisors (1181931).

1204245 is a wasteful number, since it uses less digits than its factorization.

1204245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841 (or 3838 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1204245 is about 1097.3809730445. The cubic root of 1204245 is about 106.3910146086.

Adding to 1204245 its reverse (5424021), we get a palindrome (6628266).

The spelling of 1204245 in words is "one million, two hundred four thousand, two hundred forty-five".