118729990 has 16 divisors (see below), whose sum is σ = 218261952. Its totient is φ = 46481344.

The previous prime is 118729951. The next prime is 118729997. The reversal of 118729990 is 99927811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 118729990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118729997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125839 + ... + 126778.

It is an arithmetic number, because the mean of its divisors is an integer number (13641372).

Almost surely, 2^118729990 is an apocalyptic number.

118729990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118729990 is a deficient number, since it is larger than the sum of its proper divisors (99531962).

118729990 is a wasteful number, since it uses less digits than its factorization.

118729990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252671.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 118729990 is about 10896.3291984044. The cubic root of 118729990 is about 491.4961765799.

The spelling of 118729990 in words is "one hundred eighteen million, seven hundred twenty-nine thousand, nine hundred ninety".