1189875087 has 12 divisors (see below), whose sum is σ = 1738020960. Its totient is φ = 784336608.

The previous prime is 1189875079. The next prime is 1189875131. The reversal of 1189875087 is 7805789811.

It is not a de Polignac number, because 1189875087 - 2³ = 1189875079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189875047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741943 + ... + 743544.

It is an arithmetic number, because the mean of its divisors is an integer number (144835080).

Almost surely, 2^1189875087 is an apocalyptic number.

1189875087 is a deficient number, since it is larger than the sum of its proper divisors (548145873).

1189875087 is a wasteful number, since it uses less digits than its factorization.

1189875087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485582 (or 1485579 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The square root of 1189875087 is about 34494.5660503216. The cubic root of 1189875087 is about 1059.6614223627.

The spelling of 1189875087 in words is "one billion, one hundred eighty-nine million, eight hundred seventy-five thousand, eighty-seven".