1153321530 has 16 divisors (see below), whose sum is σ = 2767971744. Its totient is φ = 307552400.

The previous prime is 1153321493. The next prime is 1153321573. The reversal of 1153321530 is 351233511.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153321530.

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, 19221996 + ... + 19222055.

It is an arithmetic number, because the mean of its divisors is an integer number (172998234).

Almost surely, 2^1153321530 is an apocalyptic number.

1153321530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153321530 is an abundant number, since it is smaller than the sum of its proper divisors (1614650214).

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

1153321530 is a wasteful number, since it uses less digits than its factorization.

1153321530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38444061.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1153321530 is about 33960.5878924379. The cubic root of 1153321530 is about 1048.6972596353.

The spelling of 1153321530 in words is "one billion, one hundred fifty-three million, three hundred twenty-one thousand, five hundred thirty".