3161885 has 16 divisors (see below), whose sum is σ = 4052160. Its totient is φ = 2361600.

The previous prime is 3161867. The next prime is 3161887. The reversal of 3161885 is 5881613.

It is not a de Polignac number, because 3161885 - 2⁸ = 3161629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161887) 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, 7685 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (253260).

Almost surely, 2^3161885 is an apocalyptic number.

It is an amenable number.

3161885 is a deficient number, since it is larger than the sum of its proper divisors (890275).

3161885 is a wasteful number, since it uses less digits than its factorization.

3161885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508.

The product of its digits is 5760, while the sum is 32.

The square root of 3161885 is about 1778.1690020918. The cubic root of 3161885 is about 146.7738512872.

It can be divided in two parts, 31 and 61885, that added together give a palindrome (61916).

The spelling of 3161885 in words is "three million, one hundred sixty-one thousand, eight hundred eighty-five".