54124139 has 4 divisors (see below), whose sum is σ = 54179424. Its totient is φ = 54068856.

The previous prime is 54124123. The next prime is 54124151. The reversal of 54124139 is 93142145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93142145 = 5 ⋅18628429.

It is a cyclic number.

It is not a de Polignac number, because 54124139 - 2⁴ = 54124123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54124439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26147 + ... + 28140.

It is an arithmetic number, because the mean of its divisors is an integer number (13544856).

Almost surely, 2^54124139 is an apocalyptic number.

54124139 is a deficient number, since it is larger than the sum of its proper divisors (55285).

54124139 is an equidigital number, since it uses as much as digits as its factorization.

54124139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55284.

The product of its digits is 4320, while the sum is 29.

The square root of 54124139 is about 7356.9109686063. The cubic root of 54124139 is about 378.2657328206.

The spelling of 54124139 in words is "fifty-four million, one hundred twenty-four thousand, one hundred thirty-nine".