1304042225 has 12 divisors (see below), whose sum is σ = 1620534300. Its totient is φ = 1040961600.

The previous prime is 1304042203. The next prime is 1304042227. The reversal of 1304042225 is 5222404031.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51165409 + 1252876816 = 7153^2 + 35396^2 .

It is not a de Polignac number, because 1304042225 - 2¹⁰ = 1304041201 is a prime.

It is a super-2 number, since 2×1304042225² = 3401052249165901250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1304042225.

It is not an unprimeable number, because it can be changed into a prime (1304042227) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 45050 + ... + 68099.

It is an arithmetic number, because the mean of its divisors is an integer number (135044525).

Almost surely, 2^1304042225 is an apocalyptic number.

It is an amenable number.

1304042225 is a deficient number, since it is larger than the sum of its proper divisors (316492075).

1304042225 is a wasteful number, since it uses less digits than its factorization.

1304042225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113620 (or 113615 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1304042225 is about 36111.5248224165. The cubic root of 1304042225 is about 1092.5229063789.

Adding to 1304042225 its reverse (5222404031), we get a palindrome (6526446256).

The spelling of 1304042225 in words is "one billion, three hundred four million, forty-two thousand, two hundred twenty-five".