118031842 has 4 divisors (see below), whose sum is σ = 177047766. Its totient is φ = 59015920.

The previous prime is 118031821. The next prime is 118031843. The reversal of 118031842 is 248130811.

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., 106936281 + 11095561 = 10341^2 + 3331^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118031842.

It is not an unprimeable number, because it can be changed into a prime (118031843) 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, 29507959 + ... + 29507962.

Almost surely, 2^118031842 is an apocalyptic number.

118031842 is a deficient number, since it is larger than the sum of its proper divisors (59015924).

118031842 is an equidigital number, since it uses as much as digits as its factorization.

118031842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59015923.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 118031842 is about 10864.2460391874. The cubic root of 118031842 is about 490.5309280577.

The spelling of 118031842 in words is "one hundred eighteen million, thirty-one thousand, eight hundred forty-two".