1189472489 has 8 divisors (see below), whose sum is σ = 1213261632. Its totient is φ = 1165821840.

The previous prime is 1189472483. The next prime is 1189472519. The reversal of 1189472489 is 9842749811.

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 1189472489 - 2⁸ = 1189472233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1189472489.

It is not an unprimeable number, because it can be changed into a prime (1189472483) 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 7 ways as a sum of consecutive naturals, for example, 17189 + ... + 51714.

It is an arithmetic number, because the mean of its divisors is an integer number (151657704).

Almost surely, 2^1189472489 is an apocalyptic number.

It is an amenable number.

1189472489 is a deficient number, since it is larger than the sum of its proper divisors (23789143).

1189472489 is an equidigital number, since it uses as much as digits as its factorization.

1189472489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69247.

The product of its digits is 1161216, while the sum is 53.

The square root of 1189472489 is about 34488.7298838331. The cubic root of 1189472489 is about 1059.5418956160.

The spelling of 1189472489 in words is "one billion, one hundred eighty-nine million, four hundred seventy-two thousand, four hundred eighty-nine".