118913 has 2 divisors, whose sum is σ = 118914. Its totient is φ = 118912.

The previous prime is 118907. The next prime is 118927. The reversal of 118913 is 319811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 47089 = 268^2 + 217^2 .

It is an emirp because it is prime and its reverse (319811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118913 - 2⁴ = 118897 is a prime.

It is not a weakly prime, because it can be changed into another prime (118903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59456 + 59457.

It is an arithmetic number, because the mean of its divisors is an integer number (59457).

2¹¹⁸⁹¹³ is an apocalyptic number.

It is an amenable number.

118913 is a deficient number, since it is larger than the sum of its proper divisors (1).

118913 is an equidigital number, since it uses as much as digits as its factorization.

118913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 23.

The square root of 118913 is about 344.8376429568. The cubic root of 118913 is about 49.1748577116.

The spelling of 118913 in words is "one hundred eighteen thousand, nine hundred thirteen".