424139 has 2 divisors, whose sum is σ = 424140. Its totient is φ = 424138.

The previous prime is 424129. The next prime is 424147. The reversal of 424139 is 931424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424139 - 2⁸ = 423883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212069 + 212070.

It is an arithmetic number, because the mean of its divisors is an integer number (212070).

2⁴²⁴¹³⁹ is an apocalyptic number.

424139 is a deficient number, since it is larger than the sum of its proper divisors (1).

424139 is an equidigital number, since it uses as much as digits as its factorization.

424139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 424139 is about 651.2595488743. The cubic root of 424139 is about 75.1339236799.

The spelling of 424139 in words is "four hundred twenty-four thousand, one hundred thirty-nine".