2144385827 has 4 divisors (see below), whose sum is σ = 2144543016. Its totient is φ = 2144228640.

The previous prime is 2144385781. The next prime is 2144385829. The reversal of 2144385827 is 7285834412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2144385827 - 2⁸ = 2144385571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144385829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55958 + ... + 86139.

It is an arithmetic number, because the mean of its divisors is an integer number (536135754).

Almost surely, 2^2144385827 is an apocalyptic number.

2144385827 is a deficient number, since it is larger than the sum of its proper divisors (157189).

2144385827 is a wasteful number, since it uses less digits than its factorization.

2144385827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157188.

The product of its digits is 430080, while the sum is 44.

The square root of 2144385827 is about 46307.5137207775. The cubic root of 2144385827 is about 1289.5384898385.

The spelling of 2144385827 in words is "two billion, one hundred forty-four million, three hundred eighty-five thousand, eight hundred twenty-seven".