1185088161 has 16 divisors (see below), whose sum is σ = 1659009600. Its totient is φ = 751426368.

The previous prime is 1185088123. The next prime is 1185088169. The reversal of 1185088161 is 1618805811.

It is not a de Polignac number, because 1185088161 - 2⁶ = 1185088097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1185088169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95826 + ... + 107483.

It is an arithmetic number, because the mean of its divisors is an integer number (103688100).

Almost surely, 2^1185088161 is an apocalyptic number.

It is an amenable number.

1185088161 is a deficient number, since it is larger than the sum of its proper divisors (473921439).

1185088161 is a wasteful number, since it uses less digits than its factorization.

1185088161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203408.

The product of its (nonzero) digits is 15360, while the sum is 39.

The square root of 1185088161 is about 34425.1094551637. The cubic root of 1185088161 is about 1058.2384891357.

The spelling of 1185088161 in words is "one billion, one hundred eighty-five million, eighty-eight thousand, one hundred sixty-one".