118381671 has 12 divisors (see below), whose sum is σ = 173894760. Its totient is φ = 77583120.

The previous prime is 118381661. The next prime is 118381721. The reversal of 118381671 is 176183811.

It is a happy number.

It is not a de Polignac number, because 118381671 - 2⁵ = 118381639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118381661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110940 + ... + 112001.

It is an arithmetic number, because the mean of its divisors is an integer number (14491230).

Almost surely, 2^118381671 is an apocalyptic number.

118381671 is a deficient number, since it is larger than the sum of its proper divisors (55513089).

118381671 is a wasteful number, since it uses less digits than its factorization.

118381671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223006 (or 223003 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 118381671 is about 10880.3341400896. The cubic root of 118381671 is about 491.0150705440.

The spelling of 118381671 in words is "one hundred eighteen million, three hundred eighty-one thousand, six hundred seventy-one".