118005671 has 6 divisors (see below), whose sum is σ = 137271960. Its totient is φ = 101147676.

The previous prime is 118005661. The next prime is 118005677. The reversal of 118005671 is 176500811.

It is a de Polignac number, because none of the positive numbers 2^k-118005671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118005677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1204091 + ... + 1204188.

It is an arithmetic number, because the mean of its divisors is an integer number (22878660).

Almost surely, 2^118005671 is an apocalyptic number.

118005671 is a deficient number, since it is larger than the sum of its proper divisors (19266289).

118005671 is an equidigital number, since it uses as much as digits as its factorization.

118005671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408293 (or 2408286 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 118005671 is about 10863.0415169970. The cubic root of 118005671 is about 490.4946705144.

It can be divided in two parts, 11800 and 5671, that added together give a palindrome (17471).

The spelling of 118005671 in words is "one hundred eighteen million, five thousand, six hundred seventy-one".