118485591 has 16 divisors (see below), whose sum is σ = 181196544. Its totient is φ = 67463424.

The previous prime is 118485569. The next prime is 118485593. The reversal of 118485591 is 195584811.

It is not a de Polignac number, because 118485591 - 2¹¹ = 118483543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118485593) 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 15 ways as a sum of consecutive naturals, for example, 4026 + ... + 15911.

It is an arithmetic number, because the mean of its divisors is an integer number (11324784).

Almost surely, 2^118485591 is an apocalyptic number.

118485591 is a deficient number, since it is larger than the sum of its proper divisors (62710953).

118485591 is a wasteful number, since it uses less digits than its factorization.

118485591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20230.

The product of its digits is 57600, while the sum is 42.

The square root of 118485591 is about 10885.1086811295. The cubic root of 118485591 is about 491.1587058496.

The spelling of 118485591 in words is "one hundred eighteen million, four hundred eighty-five thousand, five hundred ninety-one".