1155052000 has 96 divisors (see below), whose sum is σ = 2907594144. Its totient is φ = 450688000.

The previous prime is 1155051967. The next prime is 1155052007. The reversal of 1155052000 is 2505511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155052007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160479 + ... + 167521.

It is an arithmetic number, because the mean of its divisors is an integer number (30287439).

Almost surely, 2^1155052000 is an apocalyptic number.

1155052000 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 1155052000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1453797072).

1155052000 is an abundant number, since it is smaller than the sum of its proper divisors (1752542144).

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

1155052000 is an equidigital number, since it uses as much as digits as its factorization.

1155052000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109 (or 7091 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1155052000 is about 33986.0559641745. The cubic root of 1155052000 is about 1049.2214939822.

Adding to 1155052000 its reverse (2505511), we get a palindrome (1157557511).

The spelling of 1155052000 in words is "one billion, one hundred fifty-five million, fifty-two thousand".