3161081 has 16 divisors (see below), whose sum is σ = 4011648. Its totient is φ = 2419200.

The previous prime is 3161071. The next prime is 3161089. The reversal of 3161081 is 1801613.

It is not a de Polignac number, because 3161081 - 2⁶ = 3161017 is a prime.

It is a super-2 number, since 2×3161081² = 19984866177122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3161089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4361 + ... + 5033.

It is an arithmetic number, because the mean of its divisors is an integer number (250728).

Almost surely, 2^3161081 is an apocalyptic number.

It is an amenable number.

3161081 is a deficient number, since it is larger than the sum of its proper divisors (850567).

3161081 is a wasteful number, since it uses less digits than its factorization.

3161081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 3161081 is about 1777.9429124694. The cubic root of 3161081 is about 146.7614097447.

Adding to 3161081 its reverse (1801613), we get a palindrome (4962694).

The spelling of 3161081 in words is "three million, one hundred sixty-one thousand, eighty-one".