1145232000 has 512 divisors, whose sum is σ = 4620844800. Its totient is φ = 276480000.

The previous prime is 1145231963. The next prime is 1145232007. The reversal of 1145232000 is 2325411.

1145232000 is a `hidden beast` number, since 11 + 452 + 3 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1145232007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4751880 + ... + 4752120.

Almost surely, 2^1145232000 is an apocalyptic number.

1145232000 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 1145232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2310422400).

1145232000 is an abundant number, since it is smaller than the sum of its proper divisors (3475612800).

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

1145232000 is a wasteful number, since it uses less digits than its factorization.

1145232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1145232000 is about 33841.2765716661. The cubic root of 1145232000 is about 1046.2396101279.

Adding to 1145232000 its reverse (2325411), we get a palindrome (1147557411).

The spelling of 1145232000 in words is "one billion, one hundred forty-five million, two hundred thirty-two thousand".