165245522 has 8 divisors (see below), whose sum is σ = 266935116. Its totient is φ = 76267152.

The previous prime is 165245473. The next prime is 165245543. The reversal of 165245522 is 225542561.

165245522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 163609681 + 1635841 = 12791^2 + 1279^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3177773 + ... + 3177824.

Almost surely, 2^165245522 is an apocalyptic number.

165245522 is a deficient number, since it is larger than the sum of its proper divisors (101689594).

165245522 is a wasteful number, since it uses less digits than its factorization.

165245522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355612.

The product of its digits is 24000, while the sum is 32.

The square root of 165245522 is about 12854.7859569889. The cubic root of 165245522 is about 548.7525690386.

It can be divided in two parts, 1652 and 45522, that added together give a palindrome (47174).

The spelling of 165245522 in words is "one hundred sixty-five million, two hundred forty-five thousand, five hundred twenty-two".