165190208 has 14 divisors (see below), whose sum is σ = 327799446. Its totient is φ = 82595072.

The previous prime is 165190153. The next prime is 165190211. The reversal of 165190208 is 802091561.

It can be written as a sum of positive squares in only one way, i.e., 164660224 + 529984 = 12832^2 + 728^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1290485 + ... + 1290612.

Almost surely, 2^165190208 is an apocalyptic number.

It is an amenable number.

165190208 is a deficient number, since it is larger than the sum of its proper divisors (162609238).

165190208 is an equidigital number, since it uses as much as digits as its factorization.

165190208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581109 (or 2581099 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 165190208 is about 12852.6342825119. The cubic root of 165190208 is about 548.6913327103.

The spelling of 165190208 in words is "one hundred sixty-five million, one hundred ninety thousand, two hundred eight".