1117232989 has 4 divisors (see below), whose sum is σ = 1119965020. Its totient is φ = 1114500960.

The previous prime is 1117232971. The next prime is 1117232999. The reversal of 1117232989 is 9892327111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 919605625 + 197627364 = 30325^2 + 14058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117232989 - 2¹¹ = 1117230941 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 (1117232929) 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, 1365402 + ... + 1366219.

It is an arithmetic number, because the mean of its divisors is an integer number (279991255).

Almost surely, 2^1117232989 is an apocalyptic number.

It is an amenable number.

1117232989 is a deficient number, since it is larger than the sum of its proper divisors (2732031).

1117232989 is an equidigital number, since it uses as much as digits as its factorization.

1117232989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732030.

The product of its digits is 54432, while the sum is 43.

The square root of 1117232989 is about 33425.0353627337. The cubic root of 1117232989 is about 1037.6428955742.

The spelling of 1117232989 in words is "one billion, one hundred seventeen million, two hundred thirty-two thousand, nine hundred eighty-nine".