2144565161 has 8 divisors (see below), whose sum is σ = 2151175104. Its totient is φ = 2137965840.

The previous prime is 2144565097. The next prime is 2144565173. The reversal of 2144565161 is 1615654412.

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 2144565161 - 2⁶ = 2144565097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2144565061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582356 + ... + 586026.

It is an arithmetic number, because the mean of its divisors is an integer number (268896888).

Almost surely, 2^2144565161 is an apocalyptic number.

It is an amenable number.

2144565161 is a deficient number, since it is larger than the sum of its proper divisors (6609943).

2144565161 is a wasteful number, since it uses less digits than its factorization.

2144565161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its digits is 28800, while the sum is 35.

The square root of 2144565161 is about 46309.4500183278. The cubic root of 2144565161 is about 1289.5744366733.

The spelling of 2144565161 in words is "two billion, one hundred forty-four million, five hundred sixty-five thousand, one hundred sixty-one".