2144130251 has 4 divisors (see below), whose sum is σ = 2145653400. Its totient is φ = 2142607104.

The previous prime is 2144130203. The next prime is 2144130277. The reversal of 2144130251 is 1520314412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144130251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144130281) 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, 759461 + ... + 762278.

It is an arithmetic number, because the mean of its divisors is an integer number (536413350).

Almost surely, 2^2144130251 is an apocalyptic number.

2144130251 is a deficient number, since it is larger than the sum of its proper divisors (1523149).

2144130251 is a wasteful number, since it uses less digits than its factorization.

2144130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523148.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2144130251 is about 46304.7540863786. The cubic root of 2144130251 is about 1289.4872571142.

Adding to 2144130251 its reverse (1520314412), we get a palindrome (3664444663).

The spelling of 2144130251 in words is "two billion, one hundred forty-four million, one hundred thirty thousand, two hundred fifty-one".