118415459 has 2 divisors, whose sum is σ = 118415460. Its totient is φ = 118415458.

The previous prime is 118415441. The next prime is 118415461. The reversal of 118415459 is 954514811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118415459 - 2¹⁶ = 118349923 is a prime.

Together with 118415461, 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 (118415359) 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, 59207729 + 59207730.

It is an arithmetic number, because the mean of its divisors is an integer number (59207730).

Almost surely, 2^118415459 is an apocalyptic number.

118415459 is a deficient number, since it is larger than the sum of its proper divisors (1).

118415459 is an equidigital number, since it uses as much as digits as its factorization.

118415459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 38.

The square root of 118415459 is about 10881.8867389805. The cubic root of 118415459 is about 491.0617805877.

The spelling of 118415459 in words is "one hundred eighteen million, four hundred fifteen thousand, four hundred fifty-nine".