2144455253 has 4 divisors (see below), whose sum is σ = 2144555820. Its totient is φ = 2144354688.

The previous prime is 2144455219. The next prime is 2144455283. The reversal of 2144455253 is 3525544412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1117765489 + 1026689764 = 33433^2 + 32042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144455253 - 2¹⁴ = 2144438869 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 (2144455283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250 + ... + 65627.

It is an arithmetic number, because the mean of its divisors is an integer number (536138955).

Almost surely, 2^2144455253 is an apocalyptic number.

It is an amenable number.

2144455253 is a deficient number, since it is larger than the sum of its proper divisors (100567).

2144455253 is an equidigital number, since it uses as much as digits as its factorization.

2144455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100566.

The product of its digits is 96000, while the sum is 35.

The square root of 2144455253 is about 46308.2633338803. The cubic root of 2144455253 is about 1289.5524062603.

Adding to 2144455253 its reverse (3525544412), we get a palindrome (5669999665).

The spelling of 2144455253 in words is "two billion, one hundred forty-four million, four hundred fifty-five thousand, two hundred fifty-three".