118397423 has 2 divisors, whose sum is σ = 118397424. Its totient is φ = 118397422.

The previous prime is 118397387. The next prime is 118397429. The reversal of 118397423 is 324793811.

It is a strong prime.

It is an emirp because it is prime and its reverse (324793811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118397423 - 2⁶ = 118397359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118397429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59198711 + 59198712.

It is an arithmetic number, because the mean of its divisors is an integer number (59198712).

Almost surely, 2^118397423 is an apocalyptic number.

118397423 is a deficient number, since it is larger than the sum of its proper divisors (1).

118397423 is an equidigital number, since it uses as much as digits as its factorization.

118397423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 118397423 is about 10881.0579908389. The cubic root of 118397423 is about 491.0368479197.

The spelling of 118397423 in words is "one hundred eighteen million, three hundred ninety-seven thousand, four hundred twenty-three".