233140133 has 4 divisors (see below), whose sum is σ = 234625260. Its totient is φ = 231655008.

The previous prime is 233140129. The next prime is 233140157. The reversal of 233140133 is 331041332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57259489 + 175880644 = 7567^2 + 13262^2 .

It is a cyclic number.

It is not a de Polignac number, because 233140133 - 2² = 233140129 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 (233040133) 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, 742328 + ... + 742641.

It is an arithmetic number, because the mean of its divisors is an integer number (58656315).

Almost surely, 2^233140133 is an apocalyptic number.

It is an amenable number.

233140133 is a deficient number, since it is larger than the sum of its proper divisors (1485127).

233140133 is a wasteful number, since it uses less digits than its factorization.

233140133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485126.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 233140133 is about 15268.9270415442. The cubic root of 233140133 is about 615.4682867805.

Adding to 233140133 its reverse (331041332), we get a palindrome (564181465).

The spelling of 233140133 in words is "two hundred thirty-three million, one hundred forty thousand, one hundred thirty-three".