13631330 has 8 divisors (see below), whose sum is σ = 24536412. Its totient is φ = 5452528.

The previous prime is 13631323. The next prime is 13631347. The reversal of 13631330 is 3313631.

It can be written as a sum of positive squares in 2 ways, for example, as 13388281 + 243049 = 3659^2 + 493^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681557 + ... + 681576.

Almost surely, 2^13631330 is an apocalyptic number.

13631330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13631330 is a deficient number, since it is larger than the sum of its proper divisors (10905082).

13631330 is a wasteful number, since it uses less digits than its factorization.

13631330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363140.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 13631330 is about 3692.0631088864. The cubic root of 13631330 is about 238.8797910923.

Adding to 13631330 its reverse (3313631), we get a palindrome (16944961).

The spelling of 13631330 in words is "thirteen million, six hundred thirty-one thousand, three hundred thirty".