312056071 has 4 divisors (see below), whose sum is σ = 312401032. Its totient is φ = 311711112.

The previous prime is 312056027. The next prime is 312056089. The reversal of 312056071 is 170650213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312056071 - 2¹⁵ = 312023303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312056011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171120 + ... + 172933.

It is an arithmetic number, because the mean of its divisors is an integer number (78100258).

Almost surely, 2^312056071 is an apocalyptic number.

312056071 is a deficient number, since it is larger than the sum of its proper divisors (344961).

312056071 is an equidigital number, since it uses as much as digits as its factorization.

312056071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344960.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 312056071 is about 17665.1088589909. The cubic root of 312056071 is about 678.2829162155.

The spelling of 312056071 in words is "three hundred twelve million, fifty-six thousand, seventy-one".