1363 has 4 divisors (see below), whose sum is σ = 1440. Its totient is φ = 1288.

The previous prime is 1361. The next prime is 1367. The reversal of 1363 is 3631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1363 - 2¹ = 1361 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1361) 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, 6 + ... + 52.

It is an arithmetic number, because the mean of its divisors is an integer number (360).

1363 is a deficient number, since it is larger than the sum of its proper divisors (77).

1363 is an equidigital number, since it uses as much as digits as its factorization.

1363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76.

The product of its digits is 54, while the sum is 13.

The square root of 1363 is about 36.9188298839. The cubic root of 1363 is about 11.0874570870.

Adding to 1363 its reverse (3631), we get a palindrome (4994).

The spelling of 1363 in words is "one thousand, three hundred sixty-three".