8181363 has 4 divisors (see below), whose sum is σ = 10908488. Its totient is φ = 5454240.

The previous prime is 8181361. The next prime is 8181377. The reversal of 8181363 is 3631818.

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

It is not a de Polignac number, because 8181363 - 2¹ = 8181361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8181363.

It is not an unprimeable number, because it can be changed into a prime (8181361) 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, 1363558 + ... + 1363563.

It is an arithmetic number, because the mean of its divisors is an integer number (2727122).

Almost surely, 2^8181363 is an apocalyptic number.

8181363 is a deficient number, since it is larger than the sum of its proper divisors (2727125).

8181363 is a wasteful number, since it uses less digits than its factorization.

8181363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727124.

The product of its digits is 3456, while the sum is 30.

The square root of 8181363 is about 2860.3082001770. The cubic root of 8181363 is about 201.5000790186.

The spelling of 8181363 in words is "eight million, one hundred eighty-one thousand, three hundred sixty-three".