313563 has 8 divisors (see below), whose sum is σ = 421888. Its totient is φ = 207144.

The previous prime is 313561. The next prime is 313567. The reversal of 313563 is 365313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313563 - 2¹ = 313561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (313561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31 + ... + 792.

It is an arithmetic number, because the mean of its divisors is an integer number (52736).

2³¹³⁵⁶³ is an apocalyptic number.

313563 is a deficient number, since it is larger than the sum of its proper divisors (108325).

313563 is a wasteful number, since it uses less digits than its factorization.

313563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 810, while the sum is 21.

The square root of 313563 is about 559.9669633112. The cubic root of 313563 is about 67.9372980257.

Adding to 313563 its reverse (365313), we get a palindrome (678876).

The spelling of 313563 in words is "three hundred thirteen thousand, five hundred sixty-three".