1153544252 has 24 divisors (see below), whose sum is σ = 2386644960. Its totient is φ = 477328320.

The previous prime is 1153544251. The next prime is 1153544303. The reversal of 1153544252 is 2524453511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153544251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709499 + ... + 711122.

It is an arithmetic number, because the mean of its divisors is an integer number (99443540).

Almost surely, 2^1153544252 is an apocalyptic number.

It is an amenable number.

1153544252 is an abundant number, since it is smaller than the sum of its proper divisors (1233100708).

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

1153544252 is a wasteful number, since it uses less digits than its factorization.

1153544252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420661 (or 1420659 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 1153544252 is about 33963.8668587662. The cubic root of 1153544252 is about 1048.7647611693.

Adding to 1153544252 its reverse (2524453511), we get a palindrome (3677997763).

The spelling of 1153544252 in words is "one billion, one hundred fifty-three million, five hundred forty-four thousand, two hundred fifty-two".