118917 has 12 divisors (see below), whose sum is σ = 175084. Its totient is φ = 77760.

The previous prime is 118913. The next prime is 118927. The reversal of 118917 is 719811.

It can be written as a sum of positive squares in 2 ways, for example, as 25281 + 93636 = 159^2 + 306^2 .

It is not a de Polignac number, because 118917 - 2² = 118913 is a prime.

It is a Duffinian number.

118917 is a lucky number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567 + ... + 747.

2¹¹⁸⁹¹⁷ is an apocalyptic number.

It is an amenable number.

118917 is a deficient number, since it is larger than the sum of its proper divisors (56167).

118917 is a wasteful number, since it uses less digits than its factorization.

118917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 257 counting only the distinct ones).

The product of its digits is 504, while the sum is 27.

The square root of 118917 is about 344.8434427389. The cubic root of 118917 is about 49.1754090873.

It can be divided in two parts, 118 and 917, that added together give a triangular number (1035 = T₄₅).

The spelling of 118917 in words is "one hundred eighteen thousand, nine hundred seventeen".