118213583 has 4 divisors (see below), whose sum is σ = 123353328. Its totient is φ = 113073840.

The previous prime is 118213577. The next prime is 118213591. The reversal of 118213583 is 385312811.

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

It is a cyclic number.

It is not a de Polignac number, because 118213583 - 2⁶ = 118213519 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 (118213283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569838 + ... + 2569883.

It is an arithmetic number, because the mean of its divisors is an integer number (30838332).

Almost surely, 2^118213583 is an apocalyptic number.

118213583 is a deficient number, since it is larger than the sum of its proper divisors (5139745).

118213583 is an equidigital number, since it uses as much as digits as its factorization.

118213583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139744.

The product of its digits is 5760, while the sum is 32.

The square root of 118213583 is about 10872.6070010830. The cubic root of 118213583 is about 490.7825659847.

The spelling of 118213583 in words is "one hundred eighteen million, two hundred thirteen thousand, five hundred eighty-three".