118039906 has 4 divisors (see below), whose sum is σ = 177059862. Its totient is φ = 59019952.

The previous prime is 118039903. The next prime is 118039907. The reversal of 118039906 is 609930811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 45091225 = 8541^2 + 6715^2 .

It is not an unprimeable number, because it can be changed into a prime (118039903) 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 as a sum of consecutive naturals, namely, 29509975 + ... + 29509978.

Almost surely, 2^118039906 is an apocalyptic number.

118039906 is a deficient number, since it is larger than the sum of its proper divisors (59019956).

118039906 is an equidigital number, since it uses as much as digits as its factorization.

118039906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59019955.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 118039906 is about 10864.6171584644. The cubic root of 118039906 is about 490.5420989171.

The spelling of 118039906 in words is "one hundred eighteen million, thirty-nine thousand, nine hundred six".