3910121 has 2 divisors, whose sum is σ = 3910122. Its totient is φ = 3910120.

The previous prime is 3910111. The next prime is 3910133. The reversal of 3910121 is 1210193.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 1413721 = 1580^2 + 1189^2 .

It is an emirp because it is prime and its reverse (1210193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3910121 - 2⁶ = 3910057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3910121.

It is not a weakly prime, because it can be changed into another prime (3910111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955060 + 1955061.

It is an arithmetic number, because the mean of its divisors is an integer number (1955061).

Almost surely, 2^3910121 is an apocalyptic number.

It is an amenable number.

3910121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3910121 is an equidigital number, since it uses as much as digits as its factorization.

3910121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 3910121 is about 1977.4025892569. The cubic root of 3910121 is about 157.5421370419.

It can be divided in two parts, 39101 and 21, that multiplied together give a triangular number (821121 = T₁₂₈₁).

The spelling of 3910121 in words is "three million, nine hundred ten thousand, one hundred twenty-one".