1306868186 has 32 divisors (see below), whose sum is σ = 2131532928. Its totient is φ = 597360960.

The previous prime is 1306868177. The next prime is 1306868191. The reversal of 1306868186 is 6818686031.

It is a self number, because there is not a number n which added to its sum of digits gives 1306868186.

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, 2131616 + ... + 2132228.

It is an arithmetic number, because the mean of its divisors is an integer number (66610404).

Almost surely, 2^1306868186 is an apocalyptic number.

1306868186 is a deficient number, since it is larger than the sum of its proper divisors (824664742).

1306868186 is a wasteful number, since it uses less digits than its factorization.

1306868186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1306868186 is about 36150.6318893598. The cubic root of 1306868186 is about 1093.3115310404.

The spelling of 1306868186 in words is "one billion, three hundred six million, eight hundred sixty-eight thousand, one hundred eighty-six".