54100139 has 2 divisors, whose sum is σ = 54100140. Its totient is φ = 54100138.

The previous prime is 54100133. The next prime is 54100141. The reversal of 54100139 is 93100145.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54100139 is a prime.

Together with 54100141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54100133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27050069 + 27050070.

It is an arithmetic number, because the mean of its divisors is an integer number (27050070).

Almost surely, 2^54100139 is an apocalyptic number.

54100139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54100139 is an equidigital number, since it uses as much as digits as its factorization.

54100139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 54100139 is about 7355.2796683743. The cubic root of 54100139 is about 378.2098137185.

The spelling of 54100139 in words is "fifty-four million, one hundred thousand, one hundred thirty-nine".