118317907 has 2 divisors, whose sum is σ = 118317908. Its totient is φ = 118317906.

The previous prime is 118317887. The next prime is 118317919. The reversal of 118317907 is 709713811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118317907 - 2¹⁹ = 117793619 is a prime.

It is not a weakly prime, because it can be changed into another prime (118317937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59158953 + 59158954.

It is an arithmetic number, because the mean of its divisors is an integer number (59158954).

Almost surely, 2^118317907 is an apocalyptic number.

118317907 is a deficient number, since it is larger than the sum of its proper divisors (1).

118317907 is an equidigital number, since it uses as much as digits as its factorization.

118317907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 118317907 is about 10877.4035045134. The cubic root of 118317907 is about 490.9268961171.

The spelling of 118317907 in words is "one hundred eighteen million, three hundred seventeen thousand, nine hundred seven".