54120439 has 2 divisors, whose sum is σ = 54120440. Its totient is φ = 54120438.

The previous prime is 54120427. The next prime is 54120457. The reversal of 54120439 is 93402145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54120439 - 2⁹ = 54119927 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 (54120499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27060219 + 27060220.

It is an arithmetic number, because the mean of its divisors is an integer number (27060220).

Almost surely, 2^54120439 is an apocalyptic number.

54120439 is a deficient number, since it is larger than the sum of its proper divisors (1).

54120439 is an equidigital number, since it uses as much as digits as its factorization.

54120439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 54120439 is about 7356.6595000720. The cubic root of 54120439 is about 378.2571130370.

The spelling of 54120439 in words is "fifty-four million, one hundred twenty thousand, four hundred thirty-nine".