1153500000 has 168 divisors, whose sum is σ = 3789795240. Its totient is φ = 307200000.

The previous prime is 1153499993. The next prime is 1153500011. The reversal of 1153500000 is 53511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1499616 + ... + 1500384.

It is an arithmetic number, because the mean of its divisors is an integer number (22558305).

Almost surely, 2^1153500000 is an apocalyptic number.

1153500000 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 1153500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1894897620).

1153500000 is an abundant number, since it is smaller than the sum of its proper divisors (2636295240).

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

1153500000 is an frugal number, since it uses more digits than its factorization.

1153500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 1153500000 is about 33963.2153954834. The cubic root of 1153500000 is about 1048.7513501734.

Adding to 1153500000 its reverse (53511), we get a palindrome (1153553511).

The spelling of 1153500000 in words is "one billion, one hundred fifty-three million, five hundred thousand".