540499217 has 4 divisors (see below), whose sum is σ = 542760960. Its totient is φ = 538237476.

The previous prime is 540499199. The next prime is 540499231. The reversal of 540499217 is 712994045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712994045 = 5 ⋅142598809.

It is a cyclic number.

It is not a de Polignac number, because 540499217 - 2¹⁰ = 540498193 is a prime.

It is a super-2 number, since 2×540499217² = 584278807155226178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540499417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130513 + ... + 1130990.

It is an arithmetic number, because the mean of its divisors is an integer number (135690240).

Almost surely, 2^540499217 is an apocalyptic number.

It is an amenable number.

540499217 is a deficient number, since it is larger than the sum of its proper divisors (2261743).

540499217 is a wasteful number, since it uses less digits than its factorization.

540499217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261742.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 540499217 is about 23248.6390354360. The cubic root of 540499217 is about 814.5761490624.

The spelling of 540499217 in words is "five hundred forty million, four hundred ninety-nine thousand, two hundred seventeen".