1145565180 has 84 divisors (see below), whose sum is σ = 3606926232. Its totient is φ = 305480160.

The previous prime is 1145565149. The next prime is 1145565217. The reversal of 1145565180 is 815655411.

1145565180 is a `hidden beast` number, since 1 + 14 + 5 + 565 + 1 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 24706 + ... + 53865.

It is an arithmetic number, because the mean of its divisors is an integer number (42939598).

Almost surely, 2^1145565180 is an apocalyptic number.

1145565180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145565180 is an abundant number, since it is smaller than the sum of its proper divisors (2461361052).

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

1145565180 is an equidigital number, since it uses as much as digits as its factorization.

1145565180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78598 (or 78581 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 1145565180 is about 33846.1989003197. The cubic root of 1145565180 is about 1046.3410604059.

The spelling of 1145565180 in words is "one billion, one hundred forty-five million, five hundred sixty-five thousand, one hundred eighty".