1147389559 has 4 divisors (see below), whose sum is σ = 1147471200. Its totient is φ = 1147307920.

The previous prime is 1147389557. The next prime is 1147389563. The reversal of 1147389559 is 9559837411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9559837411 = 463 ⋅20647597.

It is a cyclic number.

It is not a de Polignac number, because 1147389559 - 2¹ = 1147389557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147389557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13759 + ... + 49840.

It is an arithmetic number, because the mean of its divisors is an integer number (286867800).

Almost surely, 2^1147389559 is an apocalyptic number.

1147389559 is a deficient number, since it is larger than the sum of its proper divisors (81641).

1147389559 is an equidigital number, since it uses as much as digits as its factorization.

1147389559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81640.

The product of its digits is 1360800, while the sum is 52.

The square root of 1147389559 is about 33873.1391961241. The cubic root of 1147389559 is about 1046.8962187475.

The spelling of 1147389559 in words is "one billion, one hundred forty-seven million, three hundred eighty-nine thousand, five hundred fifty-nine".