487609139 has 2 divisors, whose sum is σ = 487609140. Its totient is φ = 487609138.

The previous prime is 487609127. The next prime is 487609151. The reversal of 487609139 is 931906784.

It is a balanced prime because it is at equal distance from previous prime (487609127) and next prime (487609151).

It is a cyclic number.

It is not a de Polignac number, because 487609139 - 2⁴ = 487609123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 487609093 and 487609102.

It is not a weakly prime, because it can be changed into another prime (487609159) 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, 243804569 + 243804570.

It is an arithmetic number, because the mean of its divisors is an integer number (243804570).

Almost surely, 2^487609139 is an apocalyptic number.

487609139 is a deficient number, since it is larger than the sum of its proper divisors (1).

487609139 is an equidigital number, since it uses as much as digits as its factorization.

487609139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 487609139 is about 22081.8735391723. The cubic root of 487609139 is about 787.0891860477.

The spelling of 487609139 in words is "four hundred eighty-seven million, six hundred nine thousand, one hundred thirty-nine".