165231008 has 12 divisors (see below), whose sum is σ = 325298610. Its totient is φ = 82615488.

The previous prime is 165230999. The next prime is 165231013. The reversal of 165231008 is 800132561.

It can be written as a sum of positive squares in only one way, i.e., 148157584 + 17073424 = 12172^2 + 4132^2 .

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 as a sum of consecutive naturals, namely, 2581703 + ... + 2581766.

Almost surely, 2^165231008 is an apocalyptic number.

It is an amenable number.

165231008 is a deficient number, since it is larger than the sum of its proper divisors (160067602).

165231008 is an equidigital number, since it uses as much as digits as its factorization.

165231008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163479 (or 5163471 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 165231008 is about 12854.2214077711. The cubic root of 165231008 is about 548.7365023844.

Adding to 165231008 its reverse (800132561), we get a palindrome (965363569).

The spelling of 165231008 in words is "one hundred sixty-five million, two hundred thirty-one thousand, eight".