540863 has 2 divisors, whose sum is σ = 540864. Its totient is φ = 540862.

The previous prime is 540851. The next prime is 540871. The reversal of 540863 is 368045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540863 - 2¹⁰ = 539839 is a prime.

It is equal to p₄₄₆₃₉ and since 540863 and 44639 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270431 + 270432.

It is an arithmetic number, because the mean of its divisors is an integer number (270432).

2⁵⁴⁰⁸⁶³ is an apocalyptic number.

540863 is a deficient number, since it is larger than the sum of its proper divisors (1).

540863 is an equidigital number, since it uses as much as digits as its factorization.

540863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 540863 is about 735.4338855397. The cubic root of 540863 is about 81.4758858238.

The spelling of 540863 in words is "five hundred forty thousand, eight hundred sixty-three".