1172885089 has 8 divisors (see below), whose sum is σ = 1205611560. Its totient is φ = 1140212736.

The previous prime is 1172885083. The next prime is 1172885107. The reversal of 1172885089 is 9805882711.

It can be written as a sum of positive squares in 4 ways, for example, as 486864225 + 686020864 = 22065^2 + 26192^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1172885089 - 2³ = 1172885081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172885081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32577 + ... + 58369.

It is an arithmetic number, because the mean of its divisors is an integer number (150701445).

Almost surely, 2^1172885089 is an apocalyptic number.

It is an amenable number.

1172885089 is a deficient number, since it is larger than the sum of its proper divisors (32726471).

1172885089 is a wasteful number, since it uses less digits than its factorization.

1172885089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27059.

The product of its (nonzero) digits is 322560, while the sum is 49.

The square root of 1172885089 is about 34247.4099604627. The cubic root of 1172885089 is about 1054.5936573692.

The spelling of 1172885089 in words is "one billion, one hundred seventy-two million, eight hundred eighty-five thousand, eighty-nine".