13013633 has 4 divisors (see below), whose sum is σ = 13099968. Its totient is φ = 12927300.

The previous prime is 13013629. The next prime is 13013639. The reversal of 13013633 is 33631031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13013633 - 2² = 13013629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013639) 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, 42941 + ... + 43242.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^13013633 is an apocalyptic number.

It is an amenable number.

13013633 is a deficient number, since it is larger than the sum of its proper divisors (86335).

13013633 is an equidigital number, since it uses as much as digits as its factorization.

13013633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86334.

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

The square root of 13013633 is about 3607.4413370144. The cubic root of 13013633 is about 235.2156342766.

Adding to 13013633 its reverse (33631031), we get a palindrome (46644664).

The spelling of 13013633 in words is "thirteen million, thirteen thousand, six hundred thirty-three".