118837 has 4 divisors (see below), whose sum is σ = 119776. Its totient is φ = 117900.

The previous prime is 118831. The next prime is 118843. The reversal of 118837 is 738811.

It is a happy number.

118837 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (118831) and next prime (118843).

It is a cyclic number.

It is not a de Polignac number, because 118837 - 2⁷ = 118709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243 + ... + 544.

It is an arithmetic number, because the mean of its divisors is an integer number (29944).

2¹¹⁸⁸³⁷ is an apocalyptic number.

It is an amenable number.

118837 is a deficient number, since it is larger than the sum of its proper divisors (939).

118837 is an equidigital number, since it uses as much as digits as its factorization.

118837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its digits is 1344, while the sum is 28.

The square root of 118837 is about 344.7274285577. The cubic root of 118837 is about 49.1643792226.

It can be divided in two parts, 1188 and 37, that multiplied together give a triangular number (43956 = T₂₉₆).

The spelling of 118837 in words is "one hundred eighteen thousand, eight hundred thirty-seven".