1189662055 has 8 divisors (see below), whose sum is σ = 1427792544. Its totient is φ = 951597600.

The previous prime is 1189662049. The next prime is 1189662233. The reversal of 1189662055 is 5502669811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1189662055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 41965 + ... + 64345.

It is an arithmetic number, because the mean of its divisors is an integer number (178474068).

Almost surely, 2^1189662055 is an apocalyptic number.

1189662055 is a deficient number, since it is larger than the sum of its proper divisors (238130489).

1189662055 is a wasteful number, since it uses less digits than its factorization.

1189662055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33017.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 1189662055 is about 34491.4780054436. The cubic root of 1189662055 is about 1059.5981789550.

The spelling of 1189662055 in words is "one billion, one hundred eighty-nine million, six hundred sixty-two thousand, fifty-five".