165285136 has 10 divisors (see below), whose sum is σ = 320239982. Its totient is φ = 82642560.

The previous prime is 165285119. The next prime is 165285151. The reversal of 165285136 is 631582561.

It can be written as a sum of positive squares in only one way, i.e., 147476736 + 17808400 = 12144^2 + 4220^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165285095 and 165285104.

It is an unprimeable number.

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, 5165145 + ... + 5165176.

Almost surely, 2^165285136 is an apocalyptic number.

165285136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165285136 is a deficient number, since it is larger than the sum of its proper divisors (154954846).

165285136 is a wasteful number, since it uses less digits than its factorization.

165285136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10330329 (or 10330323 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 165285136 is about 12856.3266915554. The cubic root of 165285136 is about 548.7964160107.

The spelling of 165285136 in words is "one hundred sixty-five million, two hundred eighty-five thousand, one hundred thirty-six".