2144356169 has 4 divisors (see below), whose sum is σ = 2257217040. Its totient is φ = 2031495300.

The previous prime is 2144356157. The next prime is 2144356177. The reversal of 2144356169 is 9616534412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144356169 is a prime.

It is a super-3 number, since 3×2144356169³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144356189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56430407 + ... + 56430444.

It is an arithmetic number, because the mean of its divisors is an integer number (564304260).

Almost surely, 2^2144356169 is an apocalyptic number.

It is an amenable number.

2144356169 is a deficient number, since it is larger than the sum of its proper divisors (112860871).

2144356169 is a wasteful number, since it uses less digits than its factorization.

2144356169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112860870.

The product of its digits is 155520, while the sum is 41.

The square root of 2144356169 is about 46307.1934908606. The cubic root of 2144356169 is about 1289.5325448093.

The spelling of 2144356169 in words is "two billion, one hundred forty-four million, three hundred fifty-six thousand, one hundred sixty-nine".