201442533 has 16 divisors (see below), whose sum is σ = 281335680. Its totient is φ = 127966784.

The previous prime is 201442523. The next prime is 201442561. The reversal of 201442533 is 335244102.

It is a cyclic number.

It is not a de Polignac number, because 201442533 - 2²⁰ = 200393957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201442523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13135 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (17583480).

Almost surely, 2^201442533 is an apocalyptic number.

201442533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

201442533 is a deficient number, since it is larger than the sum of its proper divisors (79893147).

201442533 is a wasteful number, since it uses less digits than its factorization.

201442533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 201442533 is about 14193.0452334938. The cubic root of 201442533 is about 586.2061781536.

Adding to 201442533 its reverse (335244102), we get a palindrome (536686635).

The spelling of 201442533 in words is "two hundred one million, four hundred forty-two thousand, five hundred thirty-three".