1306845859 has 12 divisors (see below), whose sum is σ = 1512055720. Its totient is φ = 1125511200.

The previous prime is 1306845779. The next prime is 1306845871. The reversal of 1306845859 is 9585486031.

It is not a de Polignac number, because 1306845859 - 2⁹ = 1306845347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1306845899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281922 + ... + 286519.

Almost surely, 2^1306845859 is an apocalyptic number.

1306845859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1306845859 is a deficient number, since it is larger than the sum of its proper divisors (205209861).

1306845859 is a wasteful number, since it uses less digits than its factorization.

1306845859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568482 (or 568471 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 1306845859 is about 36150.3230829269. The cubic root of 1306845859 is about 1093.3053048308.

The spelling of 1306845859 in words is "one billion, three hundred six million, eight hundred forty-five thousand, eight hundred fifty-nine".