118171427 has 8 divisors (see below), whose sum is σ = 129418992. Its totient is φ = 107008000.

The previous prime is 118171387. The next prime is 118171481. The reversal of 118171427 is 724171811.

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

It is not a de Polignac number, because 118171427 - 2⁶ = 118171363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118171393 and 118171402.

It is not an unprimeable number, because it can be changed into a prime (118170427) 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, 18074 + ... + 23727.

It is an arithmetic number, because the mean of its divisors is an integer number (16177374).

Almost surely, 2^118171427 is an apocalyptic number.

118171427 is a deficient number, since it is larger than the sum of its proper divisors (11247565).

118171427 is a wasteful number, since it uses less digits than its factorization.

118171427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42069.

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

The square root of 118171427 is about 10870.6681947339. The cubic root of 118171427 is about 490.7242199267.

The spelling of 118171427 in words is "one hundred eighteen million, one hundred seventy-one thousand, four hundred twenty-seven".