540995281 has 2 divisors, whose sum is σ = 540995282. Its totient is φ = 540995280.

The previous prime is 540995269. The next prime is 540995347. The reversal of 540995281 is 182599045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410670225 + 130325056 = 20265^2 + 11416^2 .

It is a cyclic number.

It is not a de Polignac number, because 540995281 - 2¹⁹ = 540470993 is a prime.

It is a super-2 number, since 2×540995281² = 585351788128537922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540995201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270497640 + 270497641.

It is an arithmetic number, because the mean of its divisors is an integer number (270497641).

Almost surely, 2^540995281 is an apocalyptic number.

It is an amenable number.

540995281 is a deficient number, since it is larger than the sum of its proper divisors (1).

540995281 is an equidigital number, since it uses as much as digits as its factorization.

540995281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 540995281 is about 23259.3052561765. The cubic root of 540995281 is about 814.8252757539.

The spelling of 540995281 in words is "five hundred forty million, nine hundred ninety-five thousand, two hundred eighty-one".