2144004251 has 4 divisors (see below), whose sum is σ = 2256846600. Its totient is φ = 2031161904.

The previous prime is 2144004241. The next prime is 2144004277. The reversal of 2144004251 is 1524004412.

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 2144004251 - 2¹⁰ = 2144003227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144004211) 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, 56421146 + ... + 56421183.

It is an arithmetic number, because the mean of its divisors is an integer number (564211650).

Almost surely, 2^2144004251 is an apocalyptic number.

2144004251 is a deficient number, since it is larger than the sum of its proper divisors (112842349).

2144004251 is a wasteful number, since it uses less digits than its factorization.

2144004251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112842348.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2144004251 is about 46303.3935149466. The cubic root of 2144004251 is about 1289.4619976760.

Adding to 2144004251 its reverse (1524004412), we get a palindrome (3668008663).

The spelling of 2144004251 in words is "two billion, one hundred forty-four million, four thousand, two hundred fifty-one".