312145703 has 2 divisors, whose sum is σ = 312145704. Its totient is φ = 312145702.

The previous prime is 312145693. The next prime is 312145733. The reversal of 312145703 is 307541213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312145703 - 2²⁴ = 295368487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312145733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156072851 + 156072852.

It is an arithmetic number, because the mean of its divisors is an integer number (156072852).

Almost surely, 2^312145703 is an apocalyptic number.

312145703 is a deficient number, since it is larger than the sum of its proper divisors (1).

312145703 is an equidigital number, since it uses as much as digits as its factorization.

312145703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 312145703 is about 17667.6456552649. The cubic root of 312145703 is about 678.3478511637.

Adding to 312145703 its reverse (307541213), we get a palindrome (619686916).

The spelling of 312145703 in words is "three hundred twelve million, one hundred forty-five thousand, seven hundred three".