312463517 has 2 divisors, whose sum is σ = 312463518. Its totient is φ = 312463516.

The previous prime is 312463511. The next prime is 312463523. The reversal of 312463517 is 715364213.

It is a balanced prime because it is at equal distance from previous prime (312463511) and next prime (312463523).

It can be written as a sum of positive squares in only one way, i.e., 297010756 + 15452761 = 17234^2 + 3931^2 .

It is an emirp because it is prime and its reverse (715364213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312463517 - 2⁶ = 312463453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312463511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156231758 + 156231759.

It is an arithmetic number, because the mean of its divisors is an integer number (156231759).

Almost surely, 2^312463517 is an apocalyptic number.

It is an amenable number.

312463517 is a deficient number, since it is larger than the sum of its proper divisors (1).

312463517 is an equidigital number, since it uses as much as digits as its factorization.

312463517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 312463517 is about 17676.6376044767. The cubic root of 312463517 is about 678.5779950949.

The spelling of 312463517 in words is "three hundred twelve million, four hundred sixty-three thousand, five hundred seventeen".