118148789 has 4 divisors (see below), whose sum is σ = 128889600. Its totient is φ = 107407980.

The previous prime is 118148777. The next prime is 118148791. The reversal of 118148789 is 987841811.

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: 987841811 = 11 ⋅89803801.

It is a cyclic number.

It is not a de Polignac number, because 118148789 - 2⁴ = 118148773 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 (118748789) 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, 5370389 + ... + 5370410.

It is an arithmetic number, because the mean of its divisors is an integer number (32222400).

Almost surely, 2^118148789 is an apocalyptic number.

It is an amenable number.

118148789 is a deficient number, since it is larger than the sum of its proper divisors (10740811).

118148789 is a wasteful number, since it uses less digits than its factorization.

118148789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10740810.

The product of its digits is 129024, while the sum is 47.

The square root of 118148789 is about 10869.6269025206. The cubic root of 118148789 is about 490.6928820514.

The spelling of 118148789 in words is "one hundred eighteen million, one hundred forty-eight thousand, seven hundred eighty-nine".