1225803003 has 8 divisors (see below), whose sum is σ = 1730545488. Its totient is φ = 769131264.

The previous prime is 1225802999. The next prime is 1225803043. The reversal of 1225803003 is 3003085221.

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

It is not a de Polignac number, because 1225803003 - 2² = 1225802999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225803043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12017626 + ... + 12017727.

It is an arithmetic number, because the mean of its divisors is an integer number (216318186).

Almost surely, 2^1225803003 is an apocalyptic number.

1225803003 is a deficient number, since it is larger than the sum of its proper divisors (504742485).

1225803003 is a wasteful number, since it uses less digits than its factorization.

1225803003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24035373.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1225803003 is about 35011.4695921208. The cubic root of 1225803003 is about 1070.2212262755.

Adding to 1225803003 its reverse (3003085221), we get a palindrome (4228888224).

The spelling of 1225803003 in words is "one billion, two hundred twenty-five million, eight hundred three thousand, three".