2144945107 has 4 divisors (see below), whose sum is σ = 2145370216. Its totient is φ = 2144520000.

The previous prime is 2144945071. The next prime is 2144945141. The reversal of 2144945107 is 7015494412.

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 2144945107 - 2¹⁹ = 2144420819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144945507) 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, 204894 + ... + 215107.

It is an arithmetic number, because the mean of its divisors is an integer number (536342554).

Almost surely, 2^2144945107 is an apocalyptic number.

2144945107 is a deficient number, since it is larger than the sum of its proper divisors (425109).

2144945107 is an equidigital number, since it uses as much as digits as its factorization.

2144945107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425108.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2144945107 is about 46313.5520879148. The cubic root of 2144945107 is about 1289.6505888191.

The spelling of 2144945107 in words is "two billion, one hundred forty-four million, nine hundred forty-five thousand, one hundred seven".