3960161 has 2 divisors, whose sum is σ = 3960162. Its totient is φ = 3960160.

The previous prime is 3960137. The next prime is 3960193. The reversal of 3960161 is 1610693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3900625 + 59536 = 1975^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 3960161 - 2¹⁴ = 3943777 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 3960161.

It is not a weakly prime, because it can be changed into another prime (3960101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1980080 + 1980081.

It is an arithmetic number, because the mean of its divisors is an integer number (1980081).

Almost surely, 2^3960161 is an apocalyptic number.

It is an amenable number.

3960161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3960161 is an equidigital number, since it uses as much as digits as its factorization.

3960161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 3960161 is about 1990.0153265741. The cubic root of 3960161 is about 158.2113419211.

The spelling of 3960161 in words is "three million, nine hundred sixty thousand, one hundred sixty-one".