1318563 has 12 divisors (see below), whose sum is σ = 1915680. Its totient is φ = 873936.

The previous prime is 1318553. The next prime is 1318579. The reversal of 1318563 is 3658131.

It is not a de Polignac number, because 1318563 - 2¹³ = 1310371 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1845 + ... + 2457.

It is an arithmetic number, because the mean of its divisors is an integer number (159640).

2^1318563 is an apocalyptic number.

1318563 is a deficient number, since it is larger than the sum of its proper divisors (597117).

1318563 is a wasteful number, since it uses less digits than its factorization.

1318563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 855 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1318563 is about 1148.2869850347. The cubic root of 1318563 is about 109.6563101959.

It can be divided in two parts, 1318 and 563, that added together give a palindrome (1881).

The spelling of 1318563 in words is "one million, three hundred eighteen thousand, five hundred sixty-three".