118123229 has 4 divisors (see below), whose sum is σ = 134997984. Its totient is φ = 101248476.

The previous prime is 118123217. The next prime is 118123231. The reversal of 118123229 is 922321811.

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: 922321811 = 2237 ⋅412303.

It is a de Polignac number, because none of the positive numbers 2^k-118123229 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 (118123289) 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, 8437367 + ... + 8437380.

It is an arithmetic number, because the mean of its divisors is an integer number (33749496).

Almost surely, 2^118123229 is an apocalyptic number.

It is an amenable number.

118123229 is a deficient number, since it is larger than the sum of its proper divisors (16874755).

118123229 is an equidigital number, since it uses as much as digits as its factorization.

118123229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16874754.

The product of its digits is 1728, while the sum is 29.

The square root of 118123229 is about 10868.4510855963. The cubic root of 118123229 is about 490.6574944278.

The spelling of 118123229 in words is "one hundred eighteen million, one hundred twenty-three thousand, two hundred twenty-nine".