118284661 has 8 divisors (see below), whose sum is σ = 129497184. Its totient is φ = 107148720.

The previous prime is 118284643. The next prime is 118284667. The reversal of 118284661 is 166482811.

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 118284661 - 2⁵ = 118284629 is a prime.

It is a super-2 number, since 2×118284661² = 27982522055769842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118284661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118284667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15886 + ... + 22111.

It is an arithmetic number, because the mean of its divisors is an integer number (16187148).

Almost surely, 2^118284661 is an apocalyptic number.

118284661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118284661 is a deficient number, since it is larger than the sum of its proper divisors (11212523).

118284661 is a wasteful number, since it uses less digits than its factorization.

118284661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38291.

The product of its digits is 18432, while the sum is 37.

The square root of 118284661 is about 10875.8751831749. The cubic root of 118284661 is about 490.8809101658.

The spelling of 118284661 in words is "one hundred eighteen million, two hundred eighty-four thousand, six hundred sixty-one".