540213241 has 2 divisors, whose sum is σ = 540213242. Its totient is φ = 540213240.

The previous prime is 540213239. The next prime is 540213251. The reversal of 540213241 is 142312045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302899216 + 237314025 = 17404^2 + 15405^2 .

It is a cyclic number.

It is not a de Polignac number, because 540213241 - 2¹ = 540213239 is a prime.

Together with 540213239, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (540213211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270106620 + 270106621.

It is an arithmetic number, because the mean of its divisors is an integer number (270106621).

Almost surely, 2^540213241 is an apocalyptic number.

It is an amenable number.

540213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

540213241 is an equidigital number, since it uses as much as digits as its factorization.

540213241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 540213241 is about 23242.4878401603. The cubic root of 540213241 is about 814.4324607105.

Adding to 540213241 its reverse (142312045), we get a palindrome (682525286).

The spelling of 540213241 in words is "five hundred forty million, two hundred thirteen thousand, two hundred forty-one".