542723 has 2 divisors, whose sum is σ = 542724. Its totient is φ = 542722.

The previous prime is 542719. The next prime is 542747. The reversal of 542723 is 327245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542723 - 2² = 542719 is a prime.

It is a d-powerful number, because it can be written as 5⁴ + 4³ + 7⁴ + 2¹² + 2¹² + 3¹² .

It is not a weakly prime, because it can be changed into another prime (542713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271361 + 271362.

It is an arithmetic number, because the mean of its divisors is an integer number (271362).

2⁵⁴²⁷²³ is an apocalyptic number.

542723 is a deficient number, since it is larger than the sum of its proper divisors (1).

542723 is an equidigital number, since it uses as much as digits as its factorization.

542723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 23.

The square root of 542723 is about 736.6973598432. The cubic root of 542723 is about 81.5691760902.

Adding to 542723 its reverse (327245), we get a palindrome (869968).

The spelling of 542723 in words is "five hundred forty-two thousand, seven hundred twenty-three".