118565423 has 2 divisors, whose sum is σ = 118565424. Its totient is φ = 118565422.

The previous prime is 118565401. The next prime is 118565431. The reversal of 118565423 is 324565811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118565423 - 2¹² = 118561327 is a prime.

It is a Sophie Germain prime.

It is equal to p_6764642 and since 118565423 and 6764642 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is a weakly prime.

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, 59282711 + 59282712.

It is an arithmetic number, because the mean of its divisors is an integer number (59282712).

Almost surely, 2^118565423 is an apocalyptic number.

118565423 is a deficient number, since it is larger than the sum of its proper divisors (1).

118565423 is an equidigital number, since it uses as much as digits as its factorization.

118565423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 118565423 is about 10888.7750918090. The cubic root of 118565423 is about 491.2689903676.

The spelling of 118565423 in words is "one hundred eighteen million, five hundred sixty-five thousand, four hundred twenty-three".