201522 has 8 divisors (see below), whose sum is σ = 403056. Its totient is φ = 67172.

The previous prime is 201517. The next prime is 201547. The reversal of 201522 is 225102.

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

201522 is an admirable number.

It is a super-2 number, since 2×201522² = 81222232968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201498 and 201507.

It is an unprimeable number.

201522 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16788 + ... + 16799.

It is an arithmetic number, because the mean of its divisors is an integer number (50382).

2²⁰¹⁵²² is an apocalyptic number.

201522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201522 is a wasteful number, since it uses less digits than its factorization.

201522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33592.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 201522 is about 448.9120181060. The cubic root of 201522 is about 58.6283252115.

Adding to 201522 its reverse (225102), we get a palindrome (426624).

It can be divided in two parts, 20152 and 2, that multiplied together give a palindrome (40304).

The spelling of 201522 in words is "two hundred one thousand, five hundred twenty-two".