1304311225 has 24 divisors (see below), whose sum is σ = 1853016320. Its totient is φ = 892149120.

The previous prime is 1304311223. The next prime is 1304311277. The reversal of 1304311225 is 5221134031.

It is a happy number.

It is not a de Polignac number, because 1304311225 - 2¹ = 1304311223 is a prime.

It is a super-2 number, since 2×1304311225² = 3402455543322001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304311196 and 1304311205.

It is not an unprimeable number, because it can be changed into a prime (1304311223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62464 + ... + 80686.

Almost surely, 2^1304311225 is an apocalyptic number.

It is an amenable number.

1304311225 is a deficient number, since it is larger than the sum of its proper divisors (548705095).

1304311225 is a wasteful number, since it uses less digits than its factorization.

1304311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18649 (or 18644 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1304311225 is about 36115.2492030721. The cubic root of 1304311225 is about 1092.5980236951.

Adding to 1304311225 its reverse (5221134031), we get a palindrome (6525445256).

The spelling of 1304311225 in words is "one billion, three hundred four million, three hundred eleven thousand, two hundred twenty-five".