2144007191 has 4 divisors (see below), whose sum is σ = 2144925384. Its totient is φ = 2143089000.

The previous prime is 2144007181. The next prime is 2144007193. The reversal of 2144007191 is 1917004412.

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 2144007191 - 2⁶ = 2144007127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144007193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455585 + ... + 460266.

It is an arithmetic number, because the mean of its divisors is an integer number (536231346).

Almost surely, 2^2144007191 is an apocalyptic number.

2144007191 is a deficient number, since it is larger than the sum of its proper divisors (918193).

2144007191 is an equidigital number, since it uses as much as digits as its factorization.

2144007191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918192.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2144007191 is about 46303.4252620689. The cubic root of 2144007191 is about 1289.4625870741.

The spelling of 2144007191 in words is "two billion, one hundred forty-four million, seven thousand, one hundred ninety-one".