201244133 has 4 divisors (see below), whose sum is σ = 201313728. Its totient is φ = 201174540.

The previous prime is 201244097. The next prime is 201244139. The reversal of 201244133 is 331442102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201244133 - 2¹⁰ = 201243109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201244139) 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, 30263 + ... + 36308.

It is an arithmetic number, because the mean of its divisors is an integer number (50328432).

Almost surely, 2^201244133 is an apocalyptic number.

It is an amenable number.

201244133 is a deficient number, since it is larger than the sum of its proper divisors (69595).

201244133 is an equidigital number, since it uses as much as digits as its factorization.

201244133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69594.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 201244133 is about 14186.0541730250. The cubic root of 201244133 is about 586.0136641776.

Adding to 201244133 its reverse (331442102), we get a palindrome (532686235).

The spelling of 201244133 in words is "two hundred one million, two hundred forty-four thousand, one hundred thirty-three".