13631368 has 16 divisors (see below), whose sum is σ = 25723980. Its totient is φ = 6771648.

The previous prime is 13631347. The next prime is 13631369. The reversal of 13631368 is 86313631.

It can be written as a sum of positive squares in 2 ways, for example, as 13527684 + 103684 = 3678^2 + 322^2 .

It is not an unprimeable number, because it can be changed into a prime (13631369) 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, 4171 + ... + 6682.

Almost surely, 2^13631368 is an apocalyptic number.

It is an amenable number.

13631368 is a deficient number, since it is larger than the sum of its proper divisors (12092612).

13631368 is a wasteful number, since it uses less digits than its factorization.

13631368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016 (or 11012 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 13631368 is about 3692.0682550570. The cubic root of 13631368 is about 238.8800130669.

Adding to 13631368 its reverse (86313631), we get a palindrome (99944999).

The spelling of 13631368 in words is "thirteen million, six hundred thirty-one thousand, three hundred sixty-eight".