312012047 has 2 divisors, whose sum is σ = 312012048. Its totient is φ = 312012046.

The previous prime is 312012013. The next prime is 312012059. The reversal of 312012047 is 740210213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312012047 - 2⁶ = 312011983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312012347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156006023 + 156006024.

It is an arithmetic number, because the mean of its divisors is an integer number (156006024).

Almost surely, 2^312012047 is an apocalyptic number.

312012047 is a deficient number, since it is larger than the sum of its proper divisors (1).

312012047 is an equidigital number, since it uses as much as digits as its factorization.

312012047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 312012047 is about 17663.8627428997. The cubic root of 312012047 is about 678.2510179615.

The spelling of 312012047 in words is "three hundred twelve million, twelve thousand, forty-seven".