1304134313 has 4 divisors (see below), whose sum is σ = 1304832468. Its totient is φ = 1303436160.

The previous prime is 1304134309. The next prime is 1304134343. The reversal of 1304134313 is 3134314031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3134314031 = 54151 ⋅57881.

It can be written as a sum of positive squares in 2 ways, for example, as 122699929 + 1181434384 = 11077^2 + 34372^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304134313 - 2² = 1304134309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304134303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346268 + ... + 350013.

It is an arithmetic number, because the mean of its divisors is an integer number (326208117).

Almost surely, 2^1304134313 is an apocalyptic number.

It is an amenable number.

1304134313 is a deficient number, since it is larger than the sum of its proper divisors (698155).

1304134313 is an equidigital number, since it uses as much as digits as its factorization.

1304134313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698154.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1304134313 is about 36112.7998499147. The cubic root of 1304134313 is about 1092.5486227960.

Adding to 1304134313 its reverse (3134314031), we get a palindrome (4438448344).

The spelling of 1304134313 in words is "one billion, three hundred four million, one hundred thirty-four thousand, three hundred thirteen".