1189968975 has 120 divisors (see below), whose sum is σ = 2514370320. Its totient is φ = 551162880.

The previous prime is 1189968973. The next prime is 1189969061. The reversal of 1189968975 is 5798699811.

It is not a de Polignac number, because 1189968975 - 2¹ = 1189968973 is a prime.

It is a super-2 number, since 2×1189968975² = 2832052322925101250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189968973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 446196 + ... + 448854.

It is an arithmetic number, because the mean of its divisors is an integer number (20953086).

Almost surely, 2^1189968975 is an apocalyptic number.

1189968975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1189968975 is an abundant number, since it is smaller than the sum of its proper divisors (1324401345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1189968975 is a wasteful number, since it uses less digits than its factorization.

1189968975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2697 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 63.

The square root of 1189968975 is about 34495.9269334801. The cubic root of 1189968975 is about 1059.6892927602.

The spelling of 1189968975 in words is "one billion, one hundred eighty-nine million, nine hundred sixty-eight thousand, nine hundred seventy-five".