312071 has 2 divisors, whose sum is σ = 312072. Its totient is φ = 312070.

The previous prime is 312047. The next prime is 312073. The reversal of 312071 is 170213.

It is a strong prime.

It is an emirp because it is prime and its reverse (170213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312071 - 2⁶ = 312007 is a prime.

Together with 312073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312071.

It is not a weakly prime, because it can be changed into another prime (312073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156035 + 156036.

It is an arithmetic number, because the mean of its divisors is an integer number (156036).

2³¹²⁰⁷¹ is an apocalyptic number.

312071 is a deficient number, since it is larger than the sum of its proper divisors (1).

312071 is an equidigital number, since it uses as much as digits as its factorization.

312071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 312071 is about 558.6331533305. The cubic root of 312071 is about 67.8293732567.

Adding to 312071 its reverse (170213), we get a palindrome (482284).

The spelling of 312071 in words is "three hundred twelve thousand, seventy-one", and thus it is an iban number.