1189021933 has 16 divisors (see below), whose sum is σ = 1339649280. Its totient is φ = 1046003200.

The previous prime is 1189021931. The next prime is 1189021979. The reversal of 1189021933 is 3391209811.

It is not a de Polignac number, because 1189021933 - 2¹ = 1189021931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1189021892 and 1189021901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189021931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33093 + ... + 58933.

It is an arithmetic number, because the mean of its divisors is an integer number (83728080).

Almost surely, 2^1189021933 is an apocalyptic number.

It is an amenable number.

1189021933 is a deficient number, since it is larger than the sum of its proper divisors (150627347).

1189021933 is a wasteful number, since it uses less digits than its factorization.

1189021933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25988.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1189021933 is about 34482.1973342767. The cubic root of 1189021933 is about 1059.4080987016.

The spelling of 1189021933 in words is "one billion, one hundred eighty-nine million, twenty-one thousand, nine hundred thirty-three".