118399 has 2 divisors, whose sum is σ = 118400. Its totient is φ = 118398.

The previous prime is 118387. The next prime is 118409. The reversal of 118399 is 993811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118399 - 2¹¹ = 116351 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 118399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59199 + 59200.

It is an arithmetic number, because the mean of its divisors is an integer number (59200).

2¹¹⁸³⁹⁹ is an apocalyptic number.

118399 is a deficient number, since it is larger than the sum of its proper divisors (1).

118399 is an equidigital number, since it uses as much as digits as its factorization.

118399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 118399 is about 344.0915575832. The cubic root of 118399 is about 49.1039028039.

The spelling of 118399 in words is "one hundred eighteen thousand, three hundred ninety-nine".