133202243 has 4 divisors (see below), whose sum is σ = 134575560. Its totient is φ = 131828928.

The previous prime is 133202227. The next prime is 133202287. The reversal of 133202243 is 342202331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133202243 - 2⁴ = 133202227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133202213) 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, 686513 + ... + 686706.

It is an arithmetic number, because the mean of its divisors is an integer number (33643890).

Almost surely, 2^133202243 is an apocalyptic number.

133202243 is a deficient number, since it is larger than the sum of its proper divisors (1373317).

133202243 is an equidigital number, since it uses as much as digits as its factorization.

133202243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373316.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133202243 is about 11541.3276099416. The cubic root of 133202243 is about 510.7054737643.

Adding to 133202243 its reverse (342202331), we get a palindrome (475404574).

The spelling of 133202243 in words is "one hundred thirty-three million, two hundred two thousand, two hundred forty-three".