165315026 has 8 divisors (see below), whose sum is σ = 248895180. Its totient is φ = 82349968.

The previous prime is 165314999. The next prime is 165315041. The reversal of 165315026 is 620513561.

It can be written as a sum of positive squares in 2 ways, for example, as 163814401 + 1500625 = 12799^2 + 1225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 165315026.

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 3 ways as a sum of consecutive naturals, for example, 153101 + ... + 154176.

Almost surely, 2^165315026 is an apocalyptic number.

165315026 is a deficient number, since it is larger than the sum of its proper divisors (83580154).

165315026 is a wasteful number, since it uses less digits than its factorization.

165315026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307548.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 165315026 is about 12857.4891016870. The cubic root of 165315026 is about 548.8294952833.

Adding to 165315026 its reverse (620513561), we get a palindrome (785828587).

The spelling of 165315026 in words is "one hundred sixty-five million, three hundred fifteen thousand, twenty-six".