133230241 has 16 divisors (see below), whose sum is σ = 143758800. Its totient is φ = 123025408.

The previous prime is 133230233. The next prime is 133230257. The reversal of 133230241 is 142032331.

It can be written as a sum of positive squares in 8 ways, for example, as 19360000 + 113870241 = 4400^2 + 10671^2 .

It is a cyclic number.

It is not a de Polignac number, because 133230241 - 2³ = 133230233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133230221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261495 + ... + 262003.

It is an arithmetic number, because the mean of its divisors is an integer number (8984925).

Almost surely, 2^133230241 is an apocalyptic number.

It is an amenable number.

133230241 is a deficient number, since it is larger than the sum of its proper divisors (10528559).

133230241 is a wasteful number, since it uses less digits than its factorization.

133230241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133230241 is about 11542.5404915902. The cubic root of 133230241 is about 510.7412532672.

Adding to 133230241 its reverse (142032331), we get a palindrome (275262572).

The spelling of 133230241 in words is "one hundred thirty-three million, two hundred thirty thousand, two hundred forty-one".