13330161 has 12 divisors (see below), whose sum is σ = 20735988. Its totient is φ = 8203104.

The previous prime is 13330139. The next prime is 13330171. The reversal of 13330161 is 16103331.

It can be written as a sum of positive squares in 2 ways, for example, as 5377761 + 7952400 = 2319^2 + 2820^2 .

It is not a de Polignac number, because 13330161 - 2¹⁰ = 13329137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13330171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56850 + ... + 57083.

It is an arithmetic number, because the mean of its divisors is an integer number (1727999).

Almost surely, 2^13330161 is an apocalyptic number.

It is an amenable number.

13330161 is a deficient number, since it is larger than the sum of its proper divisors (7405827).

13330161 is a wasteful number, since it uses less digits than its factorization.

13330161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113952 (or 113949 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 13330161 is about 3651.0493012283. The cubic root of 13330161 is about 237.1074127223.

Adding to 13330161 its reverse (16103331), we get a palindrome (29433492).

The spelling of 13330161 in words is "thirteen million, three hundred thirty thousand, one hundred sixty-one".