312085871 has 2 divisors, whose sum is σ = 312085872. Its totient is φ = 312085870.

The previous prime is 312085843. The next prime is 312085903. The reversal of 312085871 is 178580213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312085871 - 2¹⁴ = 312069487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312085801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156042935 + 156042936.

It is an arithmetic number, because the mean of its divisors is an integer number (156042936).

Almost surely, 2^312085871 is an apocalyptic number.

312085871 is a deficient number, since it is larger than the sum of its proper divisors (1).

312085871 is an equidigital number, since it uses as much as digits as its factorization.

312085871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 312085871 is about 17665.9523094567. The cubic root of 312085871 is about 678.3045065528.

The spelling of 312085871 in words is "three hundred twelve million, eighty-five thousand, eight hundred seventy-one".