1305104285 has 4 divisors (see below), whose sum is σ = 1566125148. Its totient is φ = 1044083424.

The previous prime is 1305104279. The next prime is 1305104291. The reversal of 1305104285 is 5824015031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5824015031 = 307 ⋅18970733.

It is an interprime number because it is at equal distance from previous prime (1305104279) and next prime (1305104291).

It can be written as a sum of positive squares in 2 ways, for example, as 994393156 + 310711129 = 31534^2 + 17627^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305104285 - 2²⁴ = 1288327069 is a prime.

It is a super-2 number, since 2×1305104285² = 3406594389450722450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130510424 + ... + 130510433.

It is an arithmetic number, because the mean of its divisors is an integer number (391531287).

Almost surely, 2^1305104285 is an apocalyptic number.

It is an amenable number.

1305104285 is a deficient number, since it is larger than the sum of its proper divisors (261020863).

1305104285 is an equidigital number, since it uses as much as digits as its factorization.

1305104285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261020862.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1305104285 is about 36126.2271071863. The cubic root of 1305104285 is about 1092.8194228553.

The spelling of 1305104285 in words is "one billion, three hundred five million, one hundred four thousand, two hundred eighty-five".