1306861286 has 16 divisors (see below), whose sum is σ = 1972924128. Its totient is φ = 649228800.

The previous prime is 1306861271. The next prime is 1306861313. The reversal of 1306861286 is 6821686031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407951 + ... + 411141.

It is an arithmetic number, because the mean of its divisors is an integer number (123307758).

Almost surely, 2^1306861286 is an apocalyptic number.

1306861286 is a deficient number, since it is larger than the sum of its proper divisors (666062842).

1306861286 is a wasteful number, since it uses less digits than its factorization.

1306861286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1306861286 is about 36150.5364552174. The cubic root of 1306861286 is about 1093.3096068823.

The spelling of 1306861286 in words is "one billion, three hundred six million, eight hundred sixty-one thousand, two hundred eighty-six".