1306868751 has 6 divisors (see below), whose sum is σ = 1887699320. Its totient is φ = 871245828.

The previous prime is 1306868743. The next prime is 1306868833. The reversal of 1306868751 is 1578686031.

It is not a de Polignac number, because 1306868751 - 2³ = 1306868743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1306868697 and 1306868706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306868351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72603811 + ... + 72603828.

Almost surely, 2^1306868751 is an apocalyptic number.

1306868751 is a deficient number, since it is larger than the sum of its proper divisors (580830569).

1306868751 is a wasteful number, since it uses less digits than its factorization.

1306868751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145207645 (or 145207642 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1306868751 is about 36150.6397038835. The cubic root of 1306868751 is about 1093.3116885980.

The spelling of 1306868751 in words is "one billion, three hundred six million, eight hundred sixty-eight thousand, seven hundred fifty-one".