312000193 has 2 divisors, whose sum is σ = 312000194. Its totient is φ = 312000192.

The previous prime is 312000187. The next prime is 312000223. The reversal of 312000193 is 391000213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310006449 + 1993744 = 17607^2 + 1412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312000193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312000193.

It is not a weakly prime, because it can be changed into another prime (312000163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156000096 + 156000097.

It is an arithmetic number, because the mean of its divisors is an integer number (156000097).

Almost surely, 2^312000193 is an apocalyptic number.

It is an amenable number.

312000193 is a deficient number, since it is larger than the sum of its proper divisors (1).

312000193 is an equidigital number, since it uses as much as digits as its factorization.

312000193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 312000193 is about 17663.5271958915. The cubic root of 312000193 is about 678.2424284540.

The spelling of 312000193 in words is "three hundred twelve million, one hundred ninety-three", and thus it is an aban number.