315066823 has 2 divisors, whose sum is σ = 315066824. Its totient is φ = 315066822.

The previous prime is 315066809. The next prime is 315066833. The reversal of 315066823 is 328660513.

It is a strong prime.

It is an emirp because it is prime and its reverse (328660513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315066823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315066833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157533411 + 157533412.

It is an arithmetic number, because the mean of its divisors is an integer number (157533412).

Almost surely, 2^315066823 is an apocalyptic number.

315066823 is a deficient number, since it is larger than the sum of its proper divisors (1).

315066823 is an equidigital number, since it uses as much as digits as its factorization.

315066823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 315066823 is about 17750.1217742302. The cubic root of 315066823 is about 680.4573214049.

The spelling of 315066823 in words is "three hundred fifteen million, sixty-six thousand, eight hundred twenty-three".