118089405 has 24 divisors (see below), whose sum is σ = 233930112. Its totient is φ = 53983584.

The previous prime is 118089403. The next prime is 118089409. The reversal of 118089405 is 504980811.

It is not a de Polignac number, because 118089405 - 2¹ = 118089403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118089405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118089403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187129 + ... + 187758.

It is an arithmetic number, because the mean of its divisors is an integer number (9747088).

Almost surely, 2^118089405 is an apocalyptic number.

118089405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118089405 is a deficient number, since it is larger than the sum of its proper divisors (115840707).

118089405 is a wasteful number, since it uses less digits than its factorization.

118089405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374905 (or 374902 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 118089405 is about 10866.8949106909. The cubic root of 118089405 is about 490.6106575114.

The spelling of 118089405 in words is "one hundred eighteen million, eighty-nine thousand, four hundred five".