542699 has 4 divisors (see below), whose sum is σ = 544464. Its totient is φ = 540936.

The previous prime is 542693. The next prime is 542713. The reversal of 542699 is 996245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542699 - 2⁴ = 542683 is a prime.

It is a d-powerful number, because it can be written as 5⁵ + 4⁵ + 6² + 2⁹ + 9⁴ + 9⁶ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (542693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287 + ... + 1080.

It is an arithmetic number, because the mean of its divisors is an integer number (136116).

2⁵⁴²⁶⁹⁹ is an apocalyptic number.

542699 is a deficient number, since it is larger than the sum of its proper divisors (1765).

542699 is a wasteful number, since it uses less digits than its factorization.

542699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its digits is 19440, while the sum is 35.

The square root of 542699 is about 736.6810707491. The cubic root of 542699 is about 81.5679737033.

The spelling of 542699 in words is "five hundred forty-two thousand, six hundred ninety-nine".