1304504225 has 24 divisors (see below), whose sum is σ = 1695456960. Its totient is φ = 993769920.

The previous prime is 1304504221. The next prime is 1304504293. The reversal of 1304504225 is 5224054031.

1304504225 = T₂₆₂ + T₂₆₃ + ... + T₁₉₈₆.

It is a happy number.

It is not a de Polignac number, because 1304504225 - 2² = 1304504221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304504194 and 1304504203.

It is not an unprimeable number, because it can be changed into a prime (1304504221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126722 + ... + 136628.

It is an arithmetic number, because the mean of its divisors is an integer number (70644040).

Almost surely, 2^1304504225 is an apocalyptic number.

It is an amenable number.

1304504225 is a deficient number, since it is larger than the sum of its proper divisors (390952735).

1304504225 is a wasteful number, since it uses less digits than its factorization.

1304504225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1304504225 is about 36117.9211057336. The cubic root of 1304504225 is about 1092.6519119120.

Adding to 1304504225 its reverse (5224054031), we get a palindrome (6528558256).

The spelling of 1304504225 in words is "one billion, three hundred four million, five hundred four thousand, two hundred twenty-five".