1306976305 has 16 divisors (see below), whose sum is σ = 1591835904. Its totient is φ = 1029974400.

The previous prime is 1306976299. The next prime is 1306976317. The reversal of 1306976305 is 5036796031.

It is not a de Polignac number, because 1306976305 - 2²⁹ = 770105393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381912 + ... + 385318.

It is an arithmetic number, because the mean of its divisors is an integer number (99489744).

Almost surely, 2^1306976305 is an apocalyptic number.

It is an amenable number.

1306976305 is a deficient number, since it is larger than the sum of its proper divisors (284859599).

1306976305 is a wasteful number, since it uses less digits than its factorization.

1306976305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 1306976305 is about 36152.1272541465. The cubic root of 1306976305 is about 1093.3416805972.

The spelling of 1306976305 in words is "one billion, three hundred six million, nine hundred seventy-six thousand, three hundred five".