1153221024 has 48 divisors (see below), whose sum is σ = 3034305792. Its totient is φ = 383505408.

The previous prime is 1153221019. The next prime is 1153221031. The reversal of 1153221024 is 4201223511.

It is a tau number, because it is divible by the number of its divisors (48).

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, 27697 + ... + 55439.

It is an arithmetic number, because the mean of its divisors is an integer number (63214704).

Almost surely, 2^1153221024 is an apocalyptic number.

It is an amenable number.

1153221024 is an abundant number, since it is smaller than the sum of its proper divisors (1881084768).

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

1153221024 is a wasteful number, since it uses less digits than its factorization.

1153221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28189 (or 28181 counting only the distinct ones).

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

The square root of 1153221024 is about 33959.1081154968. The cubic root of 1153221024 is about 1048.6667959048. Note that the first 3 decimals are identical.

Adding to 1153221024 its reverse (4201223511), we get a palindrome (5354444535).

The spelling of 1153221024 in words is "one billion, one hundred fifty-three million, two hundred twenty-one thousand, twenty-four".