2251113144 has 64 divisors (see below), whose sum is σ = 6498105600. Its totient is φ = 636539904.

The previous prime is 2251113131. The next prime is 2251113173. The reversal of 2251113144 is 4413111522.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52774 + ... + 85365.

It is an arithmetic number, because the mean of its divisors is an integer number (101532900).

Almost surely, 2^2251113144 is an apocalyptic number.

2251113144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2251113144 is an abundant number, since it is smaller than the sum of its proper divisors (4246992456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251113144 is a wasteful number, since it uses less digits than its factorization.

2251113144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138252 (or 138248 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 2251113144 is about 47445.8970196581. The cubic root of 2251113144 is about 1310.5867550011.

Adding to 2251113144 its reverse (4413111522), we get a palindrome (6664224666).

The spelling of 2251113144 in words is "two billion, two hundred fifty-one million, one hundred thirteen thousand, one hundred forty-four".