133040241 has 6 divisors (see below), whose sum is σ = 192169250. Its totient is φ = 88693488.

The previous prime is 133040227. The next prime is 133040279. The reversal of 133040241 is 142040331.

It can be written as a sum of positive squares in only one way, i.e., 123676641 + 9363600 = 11121^2 + 3060^2 .

It is not a de Polignac number, because 133040241 - 2⁶ = 133040177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133040741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7391116 + ... + 7391133.

Almost surely, 2^133040241 is an apocalyptic number.

It is an amenable number.

133040241 is a deficient number, since it is larger than the sum of its proper divisors (59129009).

133040241 is a wasteful number, since it uses less digits than its factorization.

133040241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14782255 (or 14782252 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 133040241 is about 11534.3071313365. The cubic root of 133040241 is about 510.4983479427.

Adding to 133040241 its reverse (142040331), we get a palindrome (275080572).

The spelling of 133040241 in words is "one hundred thirty-three million, forty thousand, two hundred forty-one".