315267247 has 4 divisors (see below), whose sum is σ = 331860280. Its totient is φ = 298674216.

The previous prime is 315267229. The next prime is 315267257. The reversal of 315267247 is 742762513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742762513 = 3011 ⋅246683.

It is a cyclic number.

It is not a de Polignac number, because 315267247 - 2⁷ = 315267119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315267257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8296488 + ... + 8296525.

It is an arithmetic number, because the mean of its divisors is an integer number (82965070).

Almost surely, 2^315267247 is an apocalyptic number.

315267247 is a deficient number, since it is larger than the sum of its proper divisors (16593033).

315267247 is a wasteful number, since it uses less digits than its factorization.

315267247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16593032.

The product of its digits is 70560, while the sum is 37.

The square root of 315267247 is about 17755.7665844086. The cubic root of 315267247 is about 680.6015776493.

The spelling of 315267247 in words is "three hundred fifteen million, two hundred sixty-seven thousand, two hundred forty-seven".