118168789 has 4 divisors (see below), whose sum is σ = 118480960. Its totient is φ = 117856620.

The previous prime is 118168781. The next prime is 118168829. The reversal of 118168789 is 987861811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987861811 = 28603 ⋅34537.

It is a cyclic number.

It is not a de Polignac number, because 118168789 - 2³ = 118168781 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 (118168781) 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, 155517 + ... + 156274.

It is an arithmetic number, because the mean of its divisors is an integer number (29620240).

Almost surely, 2^118168789 is an apocalyptic number.

It is an amenable number.

118168789 is a deficient number, since it is larger than the sum of its proper divisors (312171).

118168789 is an equidigital number, since it uses as much as digits as its factorization.

118168789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312170.

The product of its digits is 193536, while the sum is 49.

The square root of 118168789 is about 10870.5468583692. The cubic root of 118168789 is about 490.7205683387.

The spelling of 118168789 in words is "one hundred eighteen million, one hundred sixty-eight thousand, seven hundred eighty-nine".