118346209 has 2 divisors, whose sum is σ = 118346210. Its totient is φ = 118346208.

The previous prime is 118346203. The next prime is 118346219. The reversal of 118346209 is 902643811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114425809 + 3920400 = 10697^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 118346209 - 2⁵ = 118346177 is a prime.

It is not a weakly prime, because it can be changed into another prime (118346203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59173104 + 59173105.

It is an arithmetic number, because the mean of its divisors is an integer number (59173105).

Almost surely, 2^118346209 is an apocalyptic number.

It is an amenable number.

118346209 is a deficient number, since it is larger than the sum of its proper divisors (1).

118346209 is an equidigital number, since it uses as much as digits as its factorization.

118346209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 118346209 is about 10878.7043805777. The cubic root of 118346209 is about 490.9660367275.

The spelling of 118346209 in words is "one hundred eighteen million, three hundred forty-six thousand, two hundred nine".