123859585 has 16 divisors (see below), whose sum is σ = 153650880. Its totient is φ = 95797440.

The previous prime is 123859559. The next prime is 123859627. The reversal of 123859585 is 585958321.

It is not a de Polignac number, because 123859585 - 2⁵ = 123859553 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 14554 + ... + 21436.

It is an arithmetic number, because the mean of its divisors is an integer number (9603180).

Almost surely, 2^123859585 is an apocalyptic number.

It is an amenable number.

123859585 is a deficient number, since it is larger than the sum of its proper divisors (29791295).

123859585 is an equidigital number, since it uses as much as digits as its factorization.

123859585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008.

The product of its digits is 432000, while the sum is 46.

The square root of 123859585 is about 11129.2221201664. Note that the first 3 decimals coincide. The cubic root of 123859585 is about 498.4747989206.

The spelling of 123859585 in words is "one hundred twenty-three million, eight hundred fifty-nine thousand, five hundred eighty-five".