313247 has 4 divisors (see below), whose sum is σ = 341736. Its totient is φ = 284760.

The previous prime is 313241. The next prime is 313249. The reversal of 313247 is 742313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313247 - 2¹⁶ = 247711 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 (313241) 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, 14228 + ... + 14249.

It is an arithmetic number, because the mean of its divisors is an integer number (85434).

2³¹³²⁴⁷ is an apocalyptic number.

313247 is a deficient number, since it is larger than the sum of its proper divisors (28489).

313247 is a wasteful number, since it uses less digits than its factorization.

313247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28488.

The product of its digits is 504, while the sum is 20.

The square root of 313247 is about 559.6847326844. The cubic root of 313247 is about 67.9144685870.

The spelling of 313247 in words is "three hundred thirteen thousand, two hundred forty-seven".