2909012161 has 8 divisors (see below), whose sum is σ = 3186748800. Its totient is φ = 2633489040.

The previous prime is 2909012153. The next prime is 2909012191. The reversal of 2909012161 is 1612109092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2909012161 - 2³ = 2909012153 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2909012191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550626 + ... + 555883.

It is an arithmetic number, because the mean of its divisors is an integer number (398343600).

Almost surely, 2^2909012161 is an apocalyptic number.

It is an amenable number.

2909012161 is a deficient number, since it is larger than the sum of its proper divisors (277736639).

2909012161 is a wasteful number, since it uses less digits than its factorization.

2909012161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106759.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 2909012161 is about 53935.2589777782. The cubic root of 2909012161 is about 1427.5188299601.

The spelling of 2909012161 in words is "two billion, nine hundred nine million, twelve thousand, one hundred sixty-one".