1149618889 has 8 divisors (see below), whose sum is σ = 1177047872. Its totient is φ = 1122221520.

The previous prime is 1149618881. The next prime is 1149618901. The reversal of 1149618889 is 9888169411.

It is a happy number.

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 1149618889 - 2³ = 1149618881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149618881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76204 + ... + 90034.

It is an arithmetic number, because the mean of its divisors is an integer number (147130984).

Almost surely, 2^1149618889 is an apocalyptic number.

It is an amenable number.

1149618889 is a deficient number, since it is larger than the sum of its proper divisors (27428983).

1149618889 is a wasteful number, since it uses less digits than its factorization.

1149618889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15807.

The product of its digits is 995328, while the sum is 55.

The square root of 1149618889 is about 33906.0302748641. The cubic root of 1149618889 is about 1047.5738053081.

The spelling of 1149618889 in words is "one billion, one hundred forty-nine million, six hundred eighteen thousand, eight hundred eighty-nine".