312603943 has 2 divisors, whose sum is σ = 312603944. Its totient is φ = 312603942.

The previous prime is 312603931. The next prime is 312603947. The reversal of 312603943 is 349306213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312603943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312603947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156301971 + 156301972.

It is an arithmetic number, because the mean of its divisors is an integer number (156301972).

Almost surely, 2^312603943 is an apocalyptic number.

312603943 is a deficient number, since it is larger than the sum of its proper divisors (1).

312603943 is an equidigital number, since it uses as much as digits as its factorization.

312603943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 312603943 is about 17680.6092372407. The cubic root of 312603943 is about 678.6796343978.

The spelling of 312603943 in words is "three hundred twelve million, six hundred three thousand, nine hundred forty-three".