2731140161 has 8 divisors (see below), whose sum is σ = 2877640800. Its totient is φ = 2584915200.

The previous prime is 2731140157. The next prime is 2731140169. The reversal of 2731140161 is 1610411372.

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 2731140161 - 2² = 2731140157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2731140161.

It is not an unprimeable number, because it can be changed into a prime (2731140169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48416 + ... + 88353.

It is an arithmetic number, because the mean of its divisors is an integer number (359705100).

Almost surely, 2^2731140161 is an apocalyptic number.

It is an amenable number.

2731140161 is a deficient number, since it is larger than the sum of its proper divisors (146500639).

2731140161 is a wasteful number, since it uses less digits than its factorization.

2731140161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137839.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2731140161 is about 52260.3115279655. The cubic root of 2731140161 is about 1397.8095270730.

The spelling of 2731140161 in words is "two billion, seven hundred thirty-one million, one hundred forty thousand, one hundred sixty-one".