118954109 has 2 divisors, whose sum is σ = 118954110. Its totient is φ = 118954108.

The previous prime is 118954093. The next prime is 118954123. The reversal of 118954109 is 901459811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98505625 + 20448484 = 9925^2 + 4522^2 .

It is a cyclic number.

It is not a de Polignac number, because 118954109 - 2⁴ = 118954093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118954139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59477054 + 59477055.

It is an arithmetic number, because the mean of its divisors is an integer number (59477055).

Almost surely, 2^118954109 is an apocalyptic number.

It is an amenable number.

118954109 is a deficient number, since it is larger than the sum of its proper divisors (1).

118954109 is an equidigital number, since it uses as much as digits as its factorization.

118954109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 118954109 is about 10906.6085012711. The cubic root of 118954109 is about 491.8052374842.

The spelling of 118954109 in words is "one hundred eighteen million, nine hundred fifty-four thousand, one hundred nine".