2144025251 has 4 divisors (see below), whose sum is σ = 2144213232. Its totient is φ = 2143837272.

The previous prime is 2144025239. The next prime is 2144025277. The reversal of 2144025251 is 1525204412.

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 2144025251 - 2³⁰ = 1070283427 is a prime.

It is a super-2 number, since 2×2144025251² = 9193688553851226002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144025251.

It is not an unprimeable number, because it can be changed into a prime (2144025211) 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, 75695 + ... + 100088.

It is an arithmetic number, because the mean of its divisors is an integer number (536053308).

Almost surely, 2^2144025251 is an apocalyptic number.

2144025251 is a deficient number, since it is larger than the sum of its proper divisors (187981).

2144025251 is a wasteful number, since it uses less digits than its factorization.

2144025251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187980.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2144025251 is about 46303.6202796282. The cubic root of 2144025251 is about 1289.4662076511.

Adding to 2144025251 its reverse (1525204412), we get a palindrome (3669229663).

The spelling of 2144025251 in words is "two billion, one hundred forty-four million, twenty-five thousand, two hundred fifty-one".