3109161 has 16 divisors (see below), whose sum is σ = 4589568. Its totient is φ = 1856400.

The previous prime is 3109159. The next prime is 3109187. The reversal of 3109161 is 1619013.

It is a happy number.

It is not a de Polignac number, because 3109161 - 2¹ = 3109159 is a prime.

It is a Curzon number.

3109161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3109111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (286848).

Almost surely, 2^3109161 is an apocalyptic number.

It is an amenable number.

3109161 is a deficient number, since it is larger than the sum of its proper divisors (1480407).

3109161 is a wasteful number, since it uses less digits than its factorization.

3109161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 3109161 is about 1763.2813161830. The cubic root of 3109161 is about 145.9534629938.

The spelling of 3109161 in words is "three million, one hundred nine thousand, one hundred sixty-one".