1155444252 has 24 divisors (see below), whose sum is σ = 2701347600. Its totient is φ = 384389376.

The previous prime is 1155444239. The next prime is 1155444263. The reversal of 1155444252 is 2524445511.

It is a happy number.

1155444252 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88477 + ... + 100692.

It is an arithmetic number, because the mean of its divisors is an integer number (112556150).

Almost surely, 2^1155444252 is an apocalyptic number.

1155444252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155444252 is an abundant number, since it is smaller than the sum of its proper divisors (1545903348).

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

1155444252 is a wasteful number, since it uses less digits than its factorization.

1155444252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189685 (or 189683 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The square root of 1155444252 is about 33991.8262527920. The cubic root of 1155444252 is about 1049.3402513052.

Adding to 1155444252 its reverse (2524445511), we get a palindrome (3679889763).

The spelling of 1155444252 in words is "one billion, one hundred fifty-five million, four hundred forty-four thousand, two hundred fifty-two".