118644229 has 4 divisors (see below), whose sum is σ = 129430080. Its totient is φ = 107858380.

The previous prime is 118644217. The next prime is 118644247. The reversal of 118644229 is 922446811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118644229 - 2⁹ = 118643717 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 (118644259) 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, 5392909 + ... + 5392930.

It is an arithmetic number, because the mean of its divisors is an integer number (32357520).

Almost surely, 2^118644229 is an apocalyptic number.

It is an amenable number.

118644229 is a deficient number, since it is larger than the sum of its proper divisors (10785851).

118644229 is a wasteful number, since it uses less digits than its factorization.

118644229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10785850.

The product of its digits is 27648, while the sum is 37.

The square root of 118644229 is about 10892.3931713834. The cubic root of 118644229 is about 491.3778089669.

The spelling of 118644229 in words is "one hundred eighteen million, six hundred forty-four thousand, two hundred twenty-nine".