54222139 has 2 divisors, whose sum is σ = 54222140. Its totient is φ = 54222138.

The previous prime is 54222089. The next prime is 54222149. The reversal of 54222139 is 93122245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54222139 - 2¹⁷ = 54091067 is a prime.

It is not a weakly prime, because it can be changed into another prime (54222149) 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 as a sum of consecutive naturals, namely, 27111069 + 27111070.

It is an arithmetic number, because the mean of its divisors is an integer number (27111070).

Almost surely, 2^54222139 is an apocalyptic number.

54222139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54222139 is an equidigital number, since it uses as much as digits as its factorization.

54222139 is an odious number, because the sum of its binary digits is odd.

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

The square root of 54222139 is about 7363.5683605165. The cubic root of 54222139 is about 378.4938977475.

The spelling of 54222139 in words is "fifty-four million, two hundred twenty-two thousand, one hundred thirty-nine".