1144530252 has 72 divisors (see below), whose sum is σ = 2970978192. Its totient is φ = 371289600.

The previous prime is 1144530241. The next prime is 1144530259. The reversal of 1144530252 is 2520354411.

It is not an unprimeable number, because it can be changed into a prime (1144530259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865752 + ... + 867072.

It is an arithmetic number, because the mean of its divisors is an integer number (41263586).

Almost surely, 2^1144530252 is an apocalyptic number.

1144530252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144530252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485489096).

1144530252 is an abundant number, since it is smaller than the sum of its proper divisors (1826447940).

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

1144530252 is a wasteful number, since it uses less digits than its factorization.

1144530252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1144530252 is about 33830.9067569878. The cubic root of 1144530252 is about 1046.0258698651.

Adding to 1144530252 its reverse (2520354411), we get a palindrome (3664884663).

The spelling of 1144530252 in words is "one billion, one hundred forty-four million, five hundred thirty thousand, two hundred fifty-two".