118543621 has 8 divisors (see below), whose sum is σ = 135568064. Its totient is φ = 101541600.

The previous prime is 118543589. The next prime is 118543637. The reversal of 118543621 is 126345811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118543621 - 2⁵ = 118543589 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 (118543681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7906 + ... + 17308.

It is an arithmetic number, because the mean of its divisors is an integer number (16946008).

Almost surely, 2^118543621 is an apocalyptic number.

It is an amenable number.

118543621 is a deficient number, since it is larger than the sum of its proper divisors (17024443).

118543621 is an equidigital number, since it uses as much as digits as its factorization.

118543621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11211.

The product of its digits is 5760, while the sum is 31.

The square root of 118543621 is about 10887.7739230754. The cubic root of 118543621 is about 491.2388767453.

The spelling of 118543621 in words is "one hundred eighteen million, five hundred forty-three thousand, six hundred twenty-one".