16327161 has 6 divisors (see below), whose sum is σ = 23583690. Its totient is φ = 10884768.

The previous prime is 16327159. The next prime is 16327169. The reversal of 16327161 is 16172361.

It can be written as a sum of positive squares in only one way, i.e., 14584761 + 1742400 = 3819^2 + 1320^2 .

It is not a de Polignac number, because 16327161 - 2¹ = 16327159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16327169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 907056 + ... + 907073.

It is an arithmetic number, because the mean of its divisors is an integer number (3930615).

Almost surely, 2^16327161 is an apocalyptic number.

It is an amenable number.

16327161 is a deficient number, since it is larger than the sum of its proper divisors (7256529).

16327161 is a wasteful number, since it uses less digits than its factorization.

16327161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814135 (or 1814132 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 16327161 is about 4040.6881839607. The cubic root of 16327161 is about 253.6901226543.

The spelling of 16327161 in words is "sixteen million, three hundred twenty-seven thousand, one hundred sixty-one".