1153441020 has 48 divisors (see below), whose sum is σ = 3238220160. Its totient is φ = 306766656.

The previous prime is 1153441013. The next prime is 1153441031. The reversal of 1153441020 is 201443511.

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 15 ways as a sum of consecutive naturals, for example, 2622 + ... + 48101.

It is an arithmetic number, because the mean of its divisors is an integer number (67462920).

Almost surely, 2^1153441020 is an apocalyptic number.

1153441020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153441020 is an abundant number, since it is smaller than the sum of its proper divisors (2084779140).

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

1153441020 is a wasteful number, since it uses less digits than its factorization.

1153441020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51114 (or 51112 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1153441020 is about 33962.3470920371. The cubic root of 1153441020 is about 1048.7334751817.

Adding to 1153441020 its reverse (201443511), we get a palindrome (1354884531).

The spelling of 1153441020 in words is "one billion, one hundred fifty-three million, four hundred forty-one thousand, twenty".