1144120500 has 72 divisors (see below), whose sum is σ = 3609333000. Its totient is φ = 305097600.

The previous prime is 1144120477. The next prime is 1144120513. The reversal of 1144120500 is 50214411.

1144120500 is a `hidden beast` number, since 1 + 1 + 44 + 120 + 500 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 239073444 + 905047056 = 15462^2 + 30084^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 122625 + ... + 131624.

It is an arithmetic number, because the mean of its divisors is an integer number (50129625).

Almost surely, 2^1144120500 is an apocalyptic number.

1144120500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144120500 is an abundant number, since it is smaller than the sum of its proper divisors (2465212500).

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

1144120500 is a wasteful number, since it uses less digits than its factorization.

1144120500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254274 (or 254259 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1144120500 is about 33824.8503322631. The cubic root of 1144120500 is about 1045.9010261135.

Adding to 1144120500 its reverse (50214411), we get a palindrome (1194334911).

The spelling of 1144120500 in words is "one billion, one hundred forty-four million, one hundred twenty thousand, five hundred".