1189875085 has 24 divisors (see below), whose sum is σ = 1662690456. Its totient is φ = 815068800.

The previous prime is 1189875079. The next prime is 1189875131. The reversal of 1189875085 is 5805789811.

1189875085 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 866761 + 1189008324 = 931^2 + 34482^2 .

It is not a de Polignac number, because 1189875085 - 2⁵ = 1189875053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316879 + ... + 320611.

It is an arithmetic number, because the mean of its divisors is an integer number (69278769).

Almost surely, 2^1189875085 is an apocalyptic number.

It is an amenable number.

1189875085 is a deficient number, since it is larger than the sum of its proper divisors (472815371).

1189875085 is a wasteful number, since it uses less digits than its factorization.

1189875085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 52.

The square root of 1189875085 is about 34494.5660213315. The cubic root of 1189875085 is about 1059.6614217690.

The spelling of 1189875085 in words is "one billion, one hundred eighty-nine million, eight hundred seventy-five thousand, eighty-five".