1152521500 has 96 divisors (see below), whose sum is σ = 2724688512. Its totient is φ = 423360000.

The previous prime is 1152521497. The next prime is 1152521507. The reversal of 1152521500 is 51252511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152521507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1826185 + ... + 1826815.

It is an arithmetic number, because the mean of its divisors is an integer number (28382172).

Almost surely, 2^1152521500 is an apocalyptic number.

1152521500 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 1152521500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362344256).

1152521500 is an abundant number, since it is smaller than the sum of its proper divisors (1572167012).

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

1152521500 is a wasteful number, since it uses less digits than its factorization.

1152521500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1152521500 is about 33948.8070482602. The cubic root of 1152521500 is about 1048.4547186159.

The spelling of 1152521500 in words is "one billion, one hundred fifty-two million, five hundred twenty-one thousand, five hundred".