118481 has 4 divisors (see below), whose sum is σ = 129264. Its totient is φ = 107700.

The previous prime is 118471. The next prime is 118493. The reversal of 118481 is 184811.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118481 is a prime.

It is a super-2 number, since 2×118481² = 28075494722, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 118481.

It is not an unprimeable number, because it can be changed into a prime (118411) 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, 5375 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (32316).

2¹¹⁸⁴⁸¹ is an apocalyptic number.

118481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118481 is a deficient number, since it is larger than the sum of its proper divisors (10783).

118481 is a wasteful number, since it uses less digits than its factorization.

118481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782.

The product of its digits is 256, while the sum is 23.

The square root of 118481 is about 344.2106912924. The cubic root of 118481 is about 49.1152362072.

The spelling of 118481 in words is "one hundred eighteen thousand, four hundred eighty-one".