1165814180 has 12 divisors (see below), whose sum is σ = 2448209820. Its totient is φ = 466325664.

The previous prime is 1165814159. The next prime is 1165814183. The reversal of 1165814180 is 814185611.

It can be written as a sum of positive squares in 2 ways, for example, as 418447936 + 747366244 = 20456^2 + 27338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1165814180.

It is not an unprimeable number, because it can be changed into a prime (1165814183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29145335 + ... + 29145374.

It is an arithmetic number, because the mean of its divisors is an integer number (204017485).

Almost surely, 2^1165814180 is an apocalyptic number.

1165814180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165814180 is an abundant number, since it is smaller than the sum of its proper divisors (1282395640).

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

1165814180 is a wasteful number, since it uses less digits than its factorization.

1165814180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58290718 (or 58290716 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 1165814180 is about 34144.0211457292. The cubic root of 1165814180 is about 1052.4701270195.

Adding to 1165814180 its reverse (814185611), we get a palindrome (1979999791).

The spelling of 1165814180 in words is "one billion, one hundred sixty-five million, eight hundred fourteen thousand, one hundred eighty".