1145550600 has 264 divisors, whose sum is σ = 4036271610. Its totient is φ = 302330880.

The previous prime is 1145550589. The next prime is 1145550631. The reversal of 1145550600 is 60555411.

It is a happy number.

1145550600 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 5 + 50 + 600 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 822198276 + 323352324 = 28674^2 + 17982^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 65 ways as a sum of consecutive naturals, for example, 11809752 + ... + 11809848.

Almost surely, 2^1145550600 is an apocalyptic number.

1145550600 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 1145550600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2018135805).

1145550600 is an abundant number, since it is smaller than the sum of its proper divisors (2890721010).

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

1145550600 is an frugal number, since it uses more digits than its factorization.

1145550600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1145550600 is about 33845.9835135574. The cubic root of 1145550600 is about 1046.3366213402.

The spelling of 1145550600 in words is "one billion, one hundred forty-five million, five hundred fifty thousand, six hundred".