504406139 has 2 divisors, whose sum is σ = 504406140. Its totient is φ = 504406138.

The previous prime is 504406121. The next prime is 504406159. The reversal of 504406139 is 931604405.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 504406139 - 2⁸ = 504405883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (504406109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252203069 + 252203070.

It is an arithmetic number, because the mean of its divisors is an integer number (252203070).

Almost surely, 2^504406139 is an apocalyptic number.

504406139 is a deficient number, since it is larger than the sum of its proper divisors (1).

504406139 is an equidigital number, since it uses as much as digits as its factorization.

504406139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 504406139 is about 22458.9879335646. The cubic root of 504406139 is about 796.0251474551.

The spelling of 504406139 in words is "five hundred four million, four hundred six thousand, one hundred thirty-nine".