3959145913 has 2 divisors, whose sum is σ = 3959145914. Its totient is φ = 3959145912.

The previous prime is 3959145833. The next prime is 3959145937. The reversal of 3959145913 is 3195419593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3427751209 + 531394704 = 58547^2 + 23052^2 .

It is a cyclic number.

It is not a de Polignac number, because 3959145913 - 2²¹ = 3957048761 is a prime.

It is not a weakly prime, because it can be changed into another prime (3959145973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979572956 + 1979572957.

It is an arithmetic number, because the mean of its divisors is an integer number (1979572957).

Almost surely, 2^3959145913 is an apocalyptic number.

It is an amenable number.

3959145913 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959145913 is an equidigital number, since it uses as much as digits as its factorization.

3959145913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 656100, while the sum is 49.

The square root of 3959145913 is about 62921.7443575748. The cubic root of 3959145913 is about 1581.9782294213.

The spelling of 3959145913 in words is "three billion, nine hundred fifty-nine million, one hundred forty-five thousand, nine hundred thirteen".