3122081 has 4 divisors (see below), whose sum is σ = 3125892. Its totient is φ = 3118272.

The previous prime is 3122059. The next prime is 3122107. The reversal of 3122081 is 1802213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1802213 = 7 ⋅257459.

It can be written as a sum of positive squares in 2 ways, for example, as 2496400 + 625681 = 1580^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122081 - 2⁶ = 3122017 is a prime.

It is a super-2 number, since 2×3122081² = 19494779541122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3122281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (781473).

Almost surely, 2^3122081 is an apocalyptic number.

It is an amenable number.

3122081 is a deficient number, since it is larger than the sum of its proper divisors (3811).

3122081 is a wasteful number, since it uses less digits than its factorization.

3122081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3122081 is about 1766.9411422003. The cubic root of 3122081 is about 146.1553516217.

Adding to 3122081 its reverse (1802213), we get a palindrome (4924294).

The spelling of 3122081 in words is "three million, one hundred twenty-two thousand, eighty-one".