312047 has 2 divisors, whose sum is σ = 312048. Its totient is φ = 312046.

The previous prime is 312043. The next prime is 312071. The reversal of 312047 is 740213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312047 - 2² = 312043 is a prime.

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 312047.

It is not a weakly prime, because it can be changed into another prime (312043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156023 + 156024.

It is an arithmetic number, because the mean of its divisors is an integer number (156024).

2³¹²⁰⁴⁷ is an apocalyptic number.

312047 is a deficient number, since it is larger than the sum of its proper divisors (1).

312047 is an equidigital number, since it uses as much as digits as its factorization.

312047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 312047 is about 558.6116719153. The cubic root of 312047 is about 67.8276343931.

The spelling of 312047 in words is "three hundred twelve thousand, forty-seven", and thus it is an iban number.