1306068987 has 16 divisors (see below), whose sum is σ = 1863134720. Its totient is φ = 811360800.

The previous prime is 1306068977. The next prime is 1306068997. The reversal of 1306068987 is 7898606031.

It is an interprime number because it is at equal distance from previous prime (1306068977) and next prime (1306068997).

It is not a de Polignac number, because 1306068987 - 2²⁰ = 1305020411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306068977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184339 + ... + 191292.

It is an arithmetic number, because the mean of its divisors is an integer number (116445920).

Almost surely, 2^1306068987 is an apocalyptic number.

1306068987 is a deficient number, since it is larger than the sum of its proper divisors (557065733).

1306068987 is a wasteful number, since it uses less digits than its factorization.

1306068987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375714.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1306068987 is about 36139.5764640373. The cubic root of 1306068987 is about 1093.0886185673.

The spelling of 1306068987 in words is "one billion, three hundred six million, sixty-eight thousand, nine hundred eighty-seven".