1147441389 has 8 divisors (see below), whose sum is σ = 1530880320. Its totient is φ = 764481696.

The previous prime is 1147441349. The next prime is 1147441391. The reversal of 1147441389 is 9831447411.

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

It is not a de Polignac number, because 1147441389 - 2⁷ = 1147441261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1147441389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147441349) 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, 114184 + ... + 123825.

It is an arithmetic number, because the mean of its divisors is an integer number (191360040).

Almost surely, 2^1147441389 is an apocalyptic number.

It is an amenable number.

1147441389 is a deficient number, since it is larger than the sum of its proper divisors (383438931).

1147441389 is a wasteful number, since it uses less digits than its factorization.

1147441389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239619.

The product of its digits is 96768, while the sum is 42.

The square root of 1147441389 is about 33873.9042479606. The cubic root of 1147441389 is about 1046.9119820116.

The spelling of 1147441389 in words is "one billion, one hundred forty-seven million, four hundred forty-one thousand, three hundred eighty-nine".