13161633 has 4 divisors (see below), whose sum is σ = 17548848. Its totient is φ = 8774420.

The previous prime is 13161601. The next prime is 13161703. The reversal of 13161633 is 33616131.

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 13161633 - 2⁵ = 13161601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13161133) 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, 2193603 + ... + 2193608.

It is an arithmetic number, because the mean of its divisors is an integer number (4387212).

Almost surely, 2^13161633 is an apocalyptic number.

It is an amenable number.

13161633 is a deficient number, since it is larger than the sum of its proper divisors (4387215).

13161633 is an equidigital number, since it uses as much as digits as its factorization.

13161633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387214.

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

The square root of 13161633 is about 3627.8964979723. The cubic root of 13161633 is about 236.1039532942.

Adding to 13161633 its reverse (33616131), we get a palindrome (46777764).

The spelling of 13161633 in words is "thirteen million, one hundred sixty-one thousand, six hundred thirty-three".