1144121500 has 24 divisors (see below), whose sum is σ = 2498762448. Its totient is φ = 457648400.

The previous prime is 1144121491. The next prime is 1144121519. The reversal of 1144121500 is 51214411.

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 7 ways as a sum of consecutive naturals, for example, 1143622 + ... + 1144621.

It is an arithmetic number, because the mean of its divisors is an integer number (104115102).

Almost surely, 2^1144121500 is an apocalyptic number.

1144121500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144121500 is an abundant number, since it is smaller than the sum of its proper divisors (1354640948).

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

1144121500 is a wasteful number, since it uses less digits than its factorization.

1144121500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288262 (or 2288250 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1144121500 is about 33824.8651142913. The cubic root of 1144121500 is about 1045.9013308310.

Adding to 1144121500 its reverse (51214411), we get a palindrome (1195335911).

The spelling of 1144121500 in words is "one billion, one hundred forty-four million, one hundred twenty-one thousand, five hundred".