542499 has 8 divisors (see below), whose sum is σ = 734400. Its totient is φ = 356136.

The previous prime is 542497. The next prime is 542519. The reversal of 542499 is 994245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542499 - 2¹ = 542497 is a prime.

542499 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542499.

It is not an unprimeable number, because it can be changed into a prime (542497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

2⁵⁴²⁴⁹⁹ is an apocalyptic number.

542499 is a deficient number, since it is larger than the sum of its proper divisors (191901).

542499 is a wasteful number, since it uses less digits than its factorization.

542499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769.

The product of its digits is 12960, while the sum is 33.

The square root of 542499 is about 736.5453142883. The cubic root of 542499 is about 81.5579524336.

The spelling of 542499 in words is "five hundred forty-two thousand, four hundred ninety-nine".