13081633 has 8 divisors (see below), whose sum is σ = 13997120. Its totient is φ = 12188880.

The previous prime is 13081631. The next prime is 13081667. The reversal of 13081633 is 33618031.

It is a happy number.

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

It is not a de Polignac number, because 13081633 - 2¹ = 13081631 is a prime.

It is a super-2 number, since 2×13081633² = 342258243893378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13081598 and 13081607.

It is not an unprimeable number, because it can be changed into a prime (13081631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4485 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1749640).

Almost surely, 2^13081633 is an apocalyptic number.

It is an amenable number.

13081633 is a deficient number, since it is larger than the sum of its proper divisors (915487).

13081633 is a wasteful number, since it uses less digits than its factorization.

13081633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11367.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13081633 is about 3616.8540197249. The cubic root of 13081633 is about 235.6246126869.

Adding to 13081633 its reverse (33618031), we get a palindrome (46699664).

The spelling of 13081633 in words is "thirteen million, eighty-one thousand, six hundred thirty-three".