233012133 has 20 divisors (see below), whose sum is σ = 348957708. Its totient is φ = 154949760.

The previous prime is 233012119. The next prime is 233012137. The reversal of 233012133 is 331210332.

It can be written as a sum of positive squares in 2 ways, for example, as 10614564 + 222397569 = 3258^2 + 14913^2 .

It is not a de Polignac number, because 233012133 - 2⁹ = 233011621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233012137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30685 + ... + 37517.

Almost surely, 2^233012133 is an apocalyptic number.

It is an amenable number.

233012133 is a deficient number, since it is larger than the sum of its proper divisors (115945575).

233012133 is an equidigital number, since it uses as much as digits as its factorization.

233012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266 (or 7257 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 233012133 is about 15264.7349469291. The cubic root of 233012133 is about 615.3556301256.

Adding to 233012133 its reverse (331210332), we get a palindrome (564222465).

The spelling of 233012133 in words is "two hundred thirty-three million, twelve thousand, one hundred thirty-three".