540240097 has 2 divisors, whose sum is σ = 540240098. Its totient is φ = 540240096.

The previous prime is 540239989. The next prime is 540240109. The reversal of 540240097 is 790042045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485937936 + 54302161 = 22044^2 + 7369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540240097 is a prime.

It is not a weakly prime, because it can be changed into another prime (540240697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270120048 + 270120049.

It is an arithmetic number, because the mean of its divisors is an integer number (270120049).

Almost surely, 2^540240097 is an apocalyptic number.

It is an amenable number.

540240097 is a deficient number, since it is larger than the sum of its proper divisors (1).

540240097 is an equidigital number, since it uses as much as digits as its factorization.

540240097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 540240097 is about 23243.0655680356. The cubic root of 540240097 is about 814.4459566377.

The spelling of 540240097 in words is "five hundred forty million, two hundred forty thousand, ninety-seven".