540865417 has 2 divisors, whose sum is σ = 540865418. Its totient is φ = 540865416.

The previous prime is 540865357. The next prime is 540865439. The reversal of 540865417 is 714568045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516698361 + 24167056 = 22731^2 + 4916^2 .

It is a cyclic number.

It is not a de Polignac number, because 540865417 - 2⁷ = 540865289 is a prime.

It is equal to p_28391449 and since 540865417 and 28391449 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540865417.

It is not a weakly prime, because it can be changed into another prime (540865517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270432708 + 270432709.

It is an arithmetic number, because the mean of its divisors is an integer number (270432709).

Almost surely, 2^540865417 is an apocalyptic number.

It is an amenable number.

540865417 is a deficient number, since it is larger than the sum of its proper divisors (1).

540865417 is an equidigital number, since it uses as much as digits as its factorization.

540865417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 540865417 is about 23256.5134317249. The cubic root of 540865417 is about 814.7600718964.

The spelling of 540865417 in words is "five hundred forty million, eight hundred sixty-five thousand, four hundred seventeen".