1303322225 has 36 divisors (see below), whose sum is σ = 1680650244. Its totient is φ = 1002516480.

The previous prime is 1303322219. The next prime is 1303322239. The reversal of 1303322225 is 5222233031.

It can be written as a sum of positive squares in 18 ways, for example, as 822485041 + 480837184 = 28679^2 + 21928^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1303322225 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303322225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3867257 + ... + 3867593.

It is an arithmetic number, because the mean of its divisors is an integer number (46684729).

Almost surely, 2^1303322225 is an apocalyptic number.

It is an amenable number.

1303322225 is a deficient number, since it is larger than the sum of its proper divisors (377328019).

1303322225 is a wasteful number, since it uses less digits than its factorization.

1303322225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1303322225 is about 36101.5543294191. The cubic root of 1303322225 is about 1092.3217980372.

Adding to 1303322225 its reverse (5222233031), we get a palindrome (6525555256).

The spelling of 1303322225 in words is "one billion, three hundred three million, three hundred twenty-two thousand, two hundred twenty-five".