315435647 has 2 divisors, whose sum is σ = 315435648. Its totient is φ = 315435646.

The previous prime is 315435641. The next prime is 315435649. The reversal of 315435647 is 746534513.

It is a strong prime.

It is an emirp because it is prime and its reverse (746534513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315435647 - 2¹⁸ = 315173503 is a prime.

Together with 315435649, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315435647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315435641) 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, 157717823 + 157717824.

It is an arithmetic number, because the mean of its divisors is an integer number (157717824).

Almost surely, 2^315435647 is an apocalyptic number.

315435647 is a deficient number, since it is larger than the sum of its proper divisors (1).

315435647 is an equidigital number, since it uses as much as digits as its factorization.

315435647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 38.

The square root of 315435647 is about 17760.5080726876. The cubic root of 315435647 is about 680.7227371903.

The spelling of 315435647 in words is "three hundred fifteen million, four hundred thirty-five thousand, six hundred forty-seven".