201055242 has 16 divisors (see below), whose sum is σ = 402361632. Its totient is φ = 66976560.

The previous prime is 201055223. The next prime is 201055271. The reversal of 201055242 is 242550102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892 + ... + 20072.

It is an arithmetic number, because the mean of its divisors is an integer number (25147602).

Almost surely, 2^201055242 is an apocalyptic number.

201055242 is an abundant number, since it is smaller than the sum of its proper divisors (201306390).

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

201055242 is a wasteful number, since it uses less digits than its factorization.

201055242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 201055242 is about 14179.3949800406. The cubic root of 201055242 is about 585.8302594805.

The spelling of 201055242 in words is "two hundred one million, fifty-five thousand, two hundred forty-two".