54132139 has 2 divisors, whose sum is σ = 54132140. Its totient is φ = 54132138.

The previous prime is 54132119. The next prime is 54132149. The reversal of 54132139 is 93123145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54132139 - 2⁷ = 54132011 is a prime.

It is not a weakly prime, because it can be changed into another prime (54132119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27066069 + 27066070.

It is an arithmetic number, because the mean of its divisors is an integer number (27066070).

Almost surely, 2^54132139 is an apocalyptic number.

54132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54132139 is an equidigital number, since it uses as much as digits as its factorization.

54132139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 54132139 is about 7357.4546549741. The cubic root of 54132139 is about 378.2843688478.

The spelling of 54132139 in words is "fifty-four million, one hundred thirty-two thousand, one hundred thirty-nine".