315047 has 2 divisors, whose sum is σ = 315048. Its totient is φ = 315046.

The previous prime is 315037. The next prime is 315059. The reversal of 315047 is 740513.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (740513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315047 - 2⁶ = 314983 is a prime.

It is a super-2 number, since 2×315047² = 198509224418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315047.

It is not a weakly prime, because it can be changed into another prime (315037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157523 + 157524.

It is an arithmetic number, because the mean of its divisors is an integer number (157524).

2³¹⁵⁰⁴⁷ is an apocalyptic number.

315047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315047 is an equidigital number, since it uses as much as digits as its factorization.

315047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 315047 is about 561.2904773823. The cubic root of 315047 is about 68.0443050371.

The spelling of 315047 in words is "three hundred fifteen thousand, forty-seven".