1153503500 has 48 divisors (see below), whose sum is σ = 2532129600. Its totient is φ = 459043200.

The previous prime is 1153503497. The next prime is 1153503511. The reversal of 1153503500 is 53053511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93704 + ... + 105296.

It is an arithmetic number, because the mean of its divisors is an integer number (52752700).

Almost surely, 2^1153503500 is an apocalyptic number.

1153503500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153503500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266064800).

1153503500 is an abundant number, since it is smaller than the sum of its proper divisors (1378626100).

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

1153503500 is a wasteful number, since it uses less digits than its factorization.

1153503500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11811 (or 11799 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 1153503500 is about 33963.2669217789. The cubic root of 1153503500 is about 1048.7524108947.

The spelling of 1153503500 in words is "one billion, one hundred fifty-three million, five hundred three thousand, five hundred".