118345247 has 2 divisors, whose sum is σ = 118345248. Its totient is φ = 118345246.

The previous prime is 118345231. The next prime is 118345267. The reversal of 118345247 is 742543811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118345247 - 2⁴ = 118345231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118345207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59172623 + 59172624.

It is an arithmetic number, because the mean of its divisors is an integer number (59172624).

Almost surely, 2^118345247 is an apocalyptic number.

118345247 is a deficient number, since it is larger than the sum of its proper divisors (1).

118345247 is an equidigital number, since it uses as much as digits as its factorization.

118345247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 118345247 is about 10878.6601656638. The cubic root of 118345247 is about 490.9647064199.

The spelling of 118345247 in words is "one hundred eighteen million, three hundred forty-five thousand, two hundred forty-seven".