1203055 has 16 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 801792.

The previous prime is 1203019. The next prime is 1203067. The reversal of 1203055 is 5503021.

It is a cyclic number.

It is not a de Polignac number, because 1203055 - 2¹⁹ = 678767 is a prime.

It is an Ulam number.

It is a plaindrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831 + ... + 1759.

It is an arithmetic number, because the mean of its divisors is an integer number (106020).

2^1203055 is an apocalyptic number.

1203055 is a deficient number, since it is larger than the sum of its proper divisors (493265).

1203055 is an equidigital number, since it uses as much as digits as its factorization.

1203055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1203055 is about 1096.8386389985. The cubic root of 1203055 is about 106.3559588868.

Adding to 1203055 its reverse (5503021), we get a palindrome (6706076).

The spelling of 1203055 in words is "one million, two hundred three thousand, fifty-five".