3128941 has 2 divisors, whose sum is σ = 3128942. Its totient is φ = 3128940.

The previous prime is 3128933. The next prime is 3128987. The reversal of 3128941 is 1498213.

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., 2414916 + 714025 = 1554^2 + 845^2 .

It is an emirp because it is prime and its reverse (1498213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3128941 - 2³ = 3128933 is a prime.

3128941 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564470 + 1564471.

It is an arithmetic number, because the mean of its divisors is an integer number (1564471).

Almost surely, 2^3128941 is an apocalyptic number.

It is an amenable number.

3128941 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128941 is an equidigital number, since it uses as much as digits as its factorization.

3128941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 3128941 is about 1768.8812848804. The cubic root of 3128941 is about 146.2623200472.

Subtracting from 3128941 its product of digits (1728), we obtain a palindrome (3127213).

The spelling of 3128941 in words is "three million, one hundred twenty-eight thousand, nine hundred forty-one".