13161133 has 2 divisors, whose sum is σ = 13161134. Its totient is φ = 13161132.

The previous prime is 13161131. The next prime is 13161149. The reversal of 13161133 is 33116131.

13161133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6901129 + 6260004 = 2627^2 + 2502^2 .

It is a cyclic number.

It is not a de Polignac number, because 13161133 - 2¹ = 13161131 is a prime.

Together with 13161131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13161133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13161131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6580566 + 6580567.

It is an arithmetic number, because the mean of its divisors is an integer number (6580567).

Almost surely, 2^13161133 is an apocalyptic number.

It is an amenable number.

13161133 is a deficient number, since it is larger than the sum of its proper divisors (1).

13161133 is an equidigital number, since it uses as much as digits as its factorization.

13161133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 19.

The square root of 13161133 is about 3627.8275868624. The cubic root of 13161133 is about 236.1009634557.

Adding to 13161133 its reverse (33116131), we get a palindrome (46277264).

The spelling of 13161133 in words is "thirteen million, one hundred sixty-one thousand, one hundred thirty-three".