201135242 has 48 divisors (see below), whose sum is σ = 389817792. Its totient is φ = 75613440.

The previous prime is 201135229. The next prime is 201135257. The reversal of 201135242 is 242531102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128738 + ... + 130290.

It is an arithmetic number, because the mean of its divisors is an integer number (8121204).

Almost surely, 2^201135242 is an apocalyptic number.

201135242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201135242 is a deficient number, since it is larger than the sum of its proper divisors (188682550).

201135242 is a wasteful number, since it uses less digits than its factorization.

201135242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201135242 is about 14182.2156943124. The cubic root of 201135242 is about 585.9079499129.

Adding to 201135242 its reverse (242531102), we get a palindrome (443666344).

The spelling of 201135242 in words is "two hundred one million, one hundred thirty-five thousand, two hundred forty-two".