540140233 has 2 divisors, whose sum is σ = 540140234. Its totient is φ = 540140232.

The previous prime is 540140207. The next prime is 540140267. The reversal of 540140233 is 332041045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308248249 + 231891984 = 17557^2 + 15228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540140233 is a prime.

It is not a weakly prime, because it can be changed into another prime (540140333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270070116 + 270070117.

It is an arithmetic number, because the mean of its divisors is an integer number (270070117).

Almost surely, 2^540140233 is an apocalyptic number.

It is an amenable number.

540140233 is a deficient number, since it is larger than the sum of its proper divisors (1).

540140233 is an equidigital number, since it uses as much as digits as its factorization.

540140233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 540140233 is about 23240.9172151187. The cubic root of 540140233 is about 814.3957697896.

Adding to 540140233 its reverse (332041045), we get a palindrome (872181278).

The spelling of 540140233 in words is "five hundred forty million, one hundred forty thousand, two hundred thirty-three".