163522 has 4 divisors (see below), whose sum is σ = 245286. Its totient is φ = 81760.

The previous prime is 163517. The next prime is 163543. The reversal of 163522 is 225361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225361 = 179 ⋅1259.

It can be written as a sum of positive squares in only one way, i.e., 143641 + 19881 = 379^2 + 141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40879 + ... + 40882.

2¹⁶³⁵²² is an apocalyptic number.

163522 is a deficient number, since it is larger than the sum of its proper divisors (81764).

163522 is an equidigital number, since it uses as much as digits as its factorization.

163522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81763.

The product of its digits is 360, while the sum is 19.

The square root of 163522 is about 404.3785355332. The cubic root of 163522 is about 54.6838055191.

Adding to 163522 its reverse (225361), we get a palindrome (388883).

The spelling of 163522 in words is "one hundred sixty-three thousand, five hundred twenty-two".