54147109 has 2 divisors, whose sum is σ = 54147110. Its totient is φ = 54147108.

The previous prime is 54147061. The next prime is 54147127. The reversal of 54147109 is 90174145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 124609 = 7350^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 54147109 - 2²¹ = 52049957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54147139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27073554 + 27073555.

It is an arithmetic number, because the mean of its divisors is an integer number (27073555).

Almost surely, 2^54147109 is an apocalyptic number.

It is an amenable number.

54147109 is a deficient number, since it is larger than the sum of its proper divisors (1).

54147109 is an equidigital number, since it uses as much as digits as its factorization.

54147109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 54147109 is about 7358.4719201747. The cubic root of 54147109 is about 378.3192365818.

The spelling of 54147109 in words is "fifty-four million, one hundred forty-seven thousand, one hundred nine".