16585138 has 16 divisors (see below), whose sum is σ = 26310240. Its totient is φ = 7819200.

The previous prime is 16585117. The next prime is 16585141. The reversal of 16585138 is 83158561.

It is a junction number, because it is equal to n+sod(n) for n = 16585097 and 16585106.

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 7 ways as a sum of consecutive naturals, for example, 8253 + ... + 10063.

It is an arithmetic number, because the mean of its divisors is an integer number (1644390).

Almost surely, 2^16585138 is an apocalyptic number.

16585138 is a deficient number, since it is larger than the sum of its proper divisors (9725102).

16585138 is a wasteful number, since it uses less digits than its factorization.

16585138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 28800, while the sum is 37.

The square root of 16585138 is about 4072.4854818649. The cubic root of 16585138 is about 255.0192885576.

It can be divided in two parts, 16585 and 138, that multiplied together give a triangular number (2288730 = T₂₁₃₉).

The spelling of 16585138 in words is "sixteen million, five hundred eighty-five thousand, one hundred thirty-eight".