2909387161 has 2 divisors, whose sum is σ = 2909387162. Its totient is φ = 2909387160.

The previous prime is 2909387153. The next prime is 2909387167. The reversal of 2909387161 is 1617839092.

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., 2877249600 + 32137561 = 53640^2 + 5669^2 .

It is a cyclic number.

It is not a de Polignac number, because 2909387161 - 2³ = 2909387153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2909387167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1454693580 + 1454693581.

It is an arithmetic number, because the mean of its divisors is an integer number (1454693581).

Almost surely, 2^2909387161 is an apocalyptic number.

It is an amenable number.

2909387161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2909387161 is an equidigital number, since it uses as much as digits as its factorization.

2909387161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 2909387161 is about 53938.7352558437. The cubic root of 2909387161 is about 1427.5801676847.

The spelling of 2909387161 in words is "two billion, nine hundred nine million, three hundred eighty-seven thousand, one hundred sixty-one".