54018109 has 2 divisors, whose sum is σ = 54018110. Its totient is φ = 54018108.

The previous prime is 54018103. The next prime is 54018127. The reversal of 54018109 is 90181045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37027225 + 16990884 = 6085^2 + 4122^2 .

It is a cyclic number.

It is not a de Polignac number, because 54018109 - 2³ = 54018101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54018101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27009054 + 27009055.

It is an arithmetic number, because the mean of its divisors is an integer number (27009055).

Almost surely, 2^54018109 is an apocalyptic number.

It is an amenable number.

54018109 is a deficient number, since it is larger than the sum of its proper divisors (1).

54018109 is an equidigital number, since it uses as much as digits as its factorization.

54018109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 54018109 is about 7349.7012864470. The cubic root of 54018109 is about 378.0185619320.

The spelling of 54018109 in words is "fifty-four million, eighteen thousand, one hundred nine".