3110981 has 2 divisors, whose sum is σ = 3110982. Its totient is φ = 3110980.

The previous prime is 3110963. The next prime is 3110993. The reversal of 3110981 is 1890113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3094081 + 16900 = 1759^2 + 130^2 .

It is an emirp because it is prime and its reverse (1890113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3110981 - 2¹⁸ = 2848837 is a prime.

It is a super-2 number, since 2×3110981² = 19356405564722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3110381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555490 + 1555491.

It is an arithmetic number, because the mean of its divisors is an integer number (1555491).

Almost surely, 2^3110981 is an apocalyptic number.

It is an amenable number.

3110981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3110981 is an equidigital number, since it uses as much as digits as its factorization.

3110981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 3110981 is about 1763.7973239576. The cubic root of 3110981 is about 145.9819362151.

The spelling of 3110981 in words is "three million, one hundred ten thousand, nine hundred eighty-one".