1306131695 has 32 divisors (see below), whose sum is σ = 1762012224. Its totient is φ = 921369600.

The previous prime is 1306131689. The next prime is 1306131703. The reversal of 1306131695 is 5961316031.

It is not a de Polignac number, because 1306131695 - 2⁴ = 1306131679 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 242249 + ... + 247581.

It is an arithmetic number, because the mean of its divisors is an integer number (55062882).

Almost surely, 2^1306131695 is an apocalyptic number.

1306131695 is a deficient number, since it is larger than the sum of its proper divisors (455880529).

1306131695 is a wasteful number, since it uses less digits than its factorization.

1306131695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1306131695 is about 36140.4440343502. Note that the first 3 decimals coincide. The cubic root of 1306131695 is about 1093.1061123610.

The spelling of 1306131695 in words is "one billion, three hundred six million, one hundred thirty-one thousand, six hundred ninety-five".