13631361 has 8 divisors (see below), whose sum is σ = 18431424. Its totient is φ = 8959440.

The previous prime is 13631347. The next prime is 13631369. The reversal of 13631361 is 16313631.

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

It is a de Polignac number, because none of the positive numbers 2^k-13631361 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 31786 + ... + 32211.

It is an arithmetic number, because the mean of its divisors is an integer number (2303928).

Almost surely, 2^13631361 is an apocalyptic number.

It is an amenable number.

13631361 is a deficient number, since it is larger than the sum of its proper divisors (4800063).

13631361 is an equidigital number, since it uses as much as digits as its factorization.

13631361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64071.

The product of its digits is 972, while the sum is 24.

The square root of 13631361 is about 3692.0673070788. The cubic root of 13631361 is about 238.8799721768.

Adding to 13631361 its reverse (16313631), we get a palindrome (29944992).

The spelling of 13631361 in words is "thirteen million, six hundred thirty-one thousand, three hundred sixty-one".