54135439 has 2 divisors, whose sum is σ = 54135440. Its totient is φ = 54135438.

The previous prime is 54135421. The next prime is 54135449. The reversal of 54135439 is 93453145.

54135439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54135439 - 2⁷ = 54135311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54135449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27067719 + 27067720.

It is an arithmetic number, because the mean of its divisors is an integer number (27067720).

Almost surely, 2^54135439 is an apocalyptic number.

54135439 is a deficient number, since it is larger than the sum of its proper divisors (1).

54135439 is an equidigital number, since it uses as much as digits as its factorization.

54135439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 54135439 is about 7357.6789138967. The cubic root of 54135439 is about 378.2920556742.

The spelling of 54135439 in words is "fifty-four million, one hundred thirty-five thousand, four hundred thirty-nine".