312070939 has 2 divisors, whose sum is σ = 312070940. Its totient is φ = 312070938.

The previous prime is 312070897. The next prime is 312070961. The reversal of 312070939 is 939070213.

It is a strong prime.

It is an emirp because it is prime and its reverse (939070213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312070939 - 2²³ = 303682331 is a prime.

It is equal to p_16870246 and since 312070939 and 16870246 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (312070999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156035469 + 156035470.

It is an arithmetic number, because the mean of its divisors is an integer number (156035470).

Almost surely, 2^312070939 is an apocalyptic number.

312070939 is a deficient number, since it is larger than the sum of its proper divisors (1).

312070939 is an equidigital number, since it uses as much as digits as its factorization.

312070939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 312070939 is about 17665.5296835391. The cubic root of 312070939 is about 678.2936883717.

The spelling of 312070939 in words is "three hundred twelve million, seventy thousand, nine hundred thirty-nine".