1303205225 has 36 divisors (see below), whose sum is σ = 1885035600. Its totient is φ = 891142560.

The previous prime is 1303205179. The next prime is 1303205263. The reversal of 1303205225 is 5225023031.

It is not a de Polignac number, because 1303205225 - 2¹⁴ = 1303188841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1303205225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 512006 + ... + 514544.

It is an arithmetic number, because the mean of its divisors is an integer number (52362100).

Almost surely, 2^1303205225 is an apocalyptic number.

It is an amenable number.

1303205225 is a deficient number, since it is larger than the sum of its proper divisors (581830375).

1303205225 is a wasteful number, since it uses less digits than its factorization.

1303205225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1303205225 is about 36099.9338642053. The cubic root of 1303205225 is about 1092.2891109364.

Adding to 1303205225 its reverse (5225023031), we get a palindrome (6528228256).

The spelling of 1303205225 in words is "one billion, three hundred three million, two hundred five thousand, two hundred twenty-five".