201242522 has 8 divisors (see below), whose sum is σ = 325084116. Its totient is φ = 92881152.

The previous prime is 201242521. The next prime is 201242527. The reversal of 201242522 is 225242102.

It can be written as a sum of positive squares in 2 ways, for example, as 199967881 + 1274641 = 14141^2 + 1129^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 201242494 and 201242503.

It is not an unprimeable number, because it can be changed into a prime (201242521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870023 + ... + 3870074.

Almost surely, 2^201242522 is an apocalyptic number.

201242522 is a deficient number, since it is larger than the sum of its proper divisors (123841594).

201242522 is a wasteful number, since it uses less digits than its factorization.

201242522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740112.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 201242522 is about 14185.9973917945. The cubic root of 201242522 is about 586.0121004541.

Adding to 201242522 its reverse (225242102), we get a palindrome (426484624).

The spelling of 201242522 in words is "two hundred one million, two hundred forty-two thousand, five hundred twenty-two".