118394369 has 2 divisors, whose sum is σ = 118394370. Its totient is φ = 118394368.

The previous prime is 118394329. The next prime is 118394371. The reversal of 118394369 is 963493811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 42094144 = 8735^2 + 6488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118394369 is a prime.

It is a super-2 number, since 2×118394369² = 28034453221816322, which contains 22 as substring.

Together with 118394371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118394329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59197184 + 59197185.

It is an arithmetic number, because the mean of its divisors is an integer number (59197185).

Almost surely, 2^118394369 is an apocalyptic number.

It is an amenable number.

118394369 is a deficient number, since it is larger than the sum of its proper divisors (1).

118394369 is an equidigital number, since it uses as much as digits as its factorization.

118394369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 118394369 is about 10880.9176543157. The cubic root of 118394369 is about 491.0326258699.

The spelling of 118394369 in words is "one hundred eighteen million, three hundred ninety-four thousand, three hundred sixty-nine".