1179535985 has 8 divisors (see below), whose sum is σ = 1416376896. Its totient is φ = 943006320.

The previous prime is 1179535961. The next prime is 1179535999. The reversal of 1179535985 is 5895359711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1179535985 - 2¹² = 1179531889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69389 + ... + 84698.

It is an arithmetic number, because the mean of its divisors is an integer number (177047112).

Almost surely, 2^1179535985 is an apocalyptic number.

It is an amenable number.

1179535985 is a deficient number, since it is larger than the sum of its proper divisors (236840911).

1179535985 is a wasteful number, since it uses less digits than its factorization.

1179535985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155623.

The product of its digits is 1701000, while the sum is 53.

The square root of 1179535985 is about 34344.3734110844. The cubic root of 1179535985 is about 1056.5832744524.

The spelling of 1179535985 in words is "one billion, one hundred seventy-nine million, five hundred thirty-five thousand, nine hundred eighty-five".