1204563 has 8 divisors (see below), whose sum is σ = 1640448. Its totient is φ = 785864.

The previous prime is 1204561. The next prime is 1204583. The reversal of 1204563 is 3654021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1204563 - 2¹ = 1204561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (205056).

2^1204563 is an apocalyptic number.

1204563 is a deficient number, since it is larger than the sum of its proper divisors (435885).

1204563 is an equidigital number, since it uses as much as digits as its factorization.

1204563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8593.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1204563 is about 1097.5258539096. The cubic root of 1204563 is about 106.4003785296.

Adding to 1204563 its reverse (3654021), we get a palindrome (4858584).

The spelling of 1204563 in words is "one million, two hundred four thousand, five hundred sixty-three".