1180080505 has 4 divisors (see below), whose sum is σ = 1416096612. Its totient is φ = 944064400.

The previous prime is 1180080497. The next prime is 1180080509. The reversal of 1180080505 is 5050800811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 801116416 + 378964089 = 28304^2 + 19467^2 .

It is not a de Polignac number, because 1180080505 - 2³ = 1180080497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1180080509) 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, 118008046 + ... + 118008055.

It is an arithmetic number, because the mean of its divisors is an integer number (354024153).

Almost surely, 2^1180080505 is an apocalyptic number.

It is an amenable number.

1180080505 is a deficient number, since it is larger than the sum of its proper divisors (236016107).

1180080505 is an equidigital number, since it uses as much as digits as its factorization.

1180080505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236016106.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 1180080505 is about 34352.2998502284. The cubic root of 1180080505 is about 1056.7458361780.

The spelling of 1180080505 in words is "one billion, one hundred eighty million, eighty thousand, five hundred five".