3950340161 has 2 divisors, whose sum is σ = 3950340162. Its totient is φ = 3950340160.

The previous prime is 3950340139. The next prime is 3950340193. The reversal of 3950340161 is 1610430593.

3950340161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3950340193) can be obtained adding 3950340161 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2909955136 + 1040385025 = 53944^2 + 32255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3950340161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3950340131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1975170080 + 1975170081.

It is an arithmetic number, because the mean of its divisors is an integer number (1975170081).

Almost surely, 2^3950340161 is an apocalyptic number.

It is an amenable number.

3950340161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3950340161 is an equidigital number, since it uses as much as digits as its factorization.

3950340161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3950340161 is about 62851.7315672369. The cubic root of 3950340161 is about 1580.8045041691.

The spelling of 3950340161 in words is "three billion, nine hundred fifty million, three hundred forty thousand, one hundred sixty-one".