504139 has 2 divisors, whose sum is σ = 504140. Its totient is φ = 504138.

The previous prime is 504121. The next prime is 504143. The reversal of 504139 is 931405.

504139 is nontrivially palindromic in base 14.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 504139 - 2⁷ = 504011 is a prime.

It is a super-2 number, since 2×504139² = 508312262642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (504149) 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, 252069 + 252070.

It is an arithmetic number, because the mean of its divisors is an integer number (252070).

2⁵⁰⁴¹³⁹ is an apocalyptic number.

504139 is a deficient number, since it is larger than the sum of its proper divisors (1).

504139 is an equidigital number, since it uses as much as digits as its factorization.

504139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 504139 is about 710.0274642575. The cubic root of 504139 is about 79.5884594769.

The spelling of 504139 in words is "five hundred four thousand, one hundred thirty-nine".