540351281 has 2 divisors, whose sum is σ = 540351282. Its totient is φ = 540351280.

The previous prime is 540351263. The next prime is 540351347. The reversal of 540351281 is 182153045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532871056 + 7480225 = 23084^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 540351281 - 2²² = 536156977 is a prime.

It is a super-2 number, since 2×540351281² = 583959013756681922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (540351781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270175640 + 270175641.

It is an arithmetic number, because the mean of its divisors is an integer number (270175641).

Almost surely, 2^540351281 is an apocalyptic number.

It is an amenable number.

540351281 is a deficient number, since it is larger than the sum of its proper divisors (1).

540351281 is an equidigital number, since it uses as much as digits as its factorization.

540351281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 540351281 is about 23245.4572121092. The cubic root of 540351281 is about 814.5018250984.

The spelling of 540351281 in words is "five hundred forty million, three hundred fifty-one thousand, two hundred eighty-one".