118088721 has 12 divisors (see below), whose sum is σ = 170681472. Its totient is φ = 78675576.

The previous prime is 118088689. The next prime is 118088753. The reversal of 118088721 is 127880811.

It is an interprime number because it is at equal distance from previous prime (118088689) and next prime (118088753).

It is not a de Polignac number, because 118088721 - 2⁵ = 118088689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118088821) 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 11 ways as a sum of consecutive naturals, for example, 15640 + ... + 21926.

It is an arithmetic number, because the mean of its divisors is an integer number (14223456).

Almost surely, 2^118088721 is an apocalyptic number.

It is an amenable number.

118088721 is a deficient number, since it is larger than the sum of its proper divisors (52592751).

118088721 is a wasteful number, since it uses less digits than its factorization.

118088721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8380 (or 8377 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 36.

The square root of 118088721 is about 10866.8634389137. The cubic root of 118088721 is about 490.6097102677.

The spelling of 118088721 in words is "one hundred eighteen million, eighty-eight thousand, seven hundred twenty-one".