1115565189 has 8 divisors (see below), whose sum is σ = 1488020352. Its totient is φ = 743410080.

The previous prime is 1115565181. The next prime is 1115565197. The reversal of 1115565189 is 9815655111.

It is an interprime number because it is at equal distance from previous prime (1115565181) and next prime (1115565197).

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

It is not a de Polignac number, because 1115565189 - 2³ = 1115565181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1115565189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115565181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66189 + ... + 81314.

It is an arithmetic number, because the mean of its divisors is an integer number (186002544).

Almost surely, 2^1115565189 is an apocalyptic number.

It is an amenable number.

1115565189 is a deficient number, since it is larger than the sum of its proper divisors (372455163).

1115565189 is a wasteful number, since it uses less digits than its factorization.

1115565189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150027.

The product of its digits is 54000, while the sum is 42.

The square root of 1115565189 is about 33400.0776795504. The cubic root of 1115565189 is about 1037.1263090050.

The spelling of 1115565189 in words is "one billion, one hundred fifteen million, five hundred sixty-five thousand, one hundred eighty-nine".