201242536 has 16 divisors (see below), whose sum is σ = 411632640. Its totient is φ = 91473840.

The previous prime is 201242527. The next prime is 201242539. The reversal of 201242536 is 635242102.

It is a super-2 number, since 2×201242536² = 80997116591422592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201242536.

It is not an unprimeable number, because it can be changed into a prime (201242539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143336 + ... + 1143511.

It is an arithmetic number, because the mean of its divisors is an integer number (25727040).

Almost surely, 2^201242536 is an apocalyptic number.

It is an amenable number.

201242536 is an abundant number, since it is smaller than the sum of its proper divisors (210390104).

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

201242536 is a wasteful number, since it uses less digits than its factorization.

201242536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286864 (or 2286860 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 201242536 is about 14185.9978852388. The cubic root of 201242536 is about 586.0121140433.

Adding to 201242536 its reverse (635242102), we get a palindrome (836484638).

The spelling of 201242536 in words is "two hundred one million, two hundred forty-two thousand, five hundred thirty-six".