118171742 has 8 divisors (see below), whose sum is σ = 190892856. Its totient is φ = 54540792.

The previous prime is 118171741. The next prime is 118171759. The reversal of 118171742 is 247171811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 118171699 and 118171708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118171741) 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 3 ways as a sum of consecutive naturals, for example, 2272508 + ... + 2272559.

It is an arithmetic number, because the mean of its divisors is an integer number (23861607).

Almost surely, 2^118171742 is an apocalyptic number.

118171742 is a deficient number, since it is larger than the sum of its proper divisors (72721114).

118171742 is a wasteful number, since it uses less digits than its factorization.

118171742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545082.

The product of its digits is 3136, while the sum is 32.

The square root of 118171742 is about 10870.6826832541. The cubic root of 118171742 is about 490.7246559543.

The spelling of 118171742 in words is "one hundred eighteen million, one hundred seventy-one thousand, seven hundred forty-two".