542323 has 2 divisors, whose sum is σ = 542324. Its totient is φ = 542322.

The previous prime is 542299. The next prime is 542371. The reversal of 542323 is 323245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542323 - 2¹⁷ = 411251 is a prime.

It is a super-2 number, since 2×542323² = 588228472658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542323.

It is not a weakly prime, because it can be changed into another prime (542023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271161 + 271162.

It is an arithmetic number, because the mean of its divisors is an integer number (271162).

2⁵⁴²³²³ is an apocalyptic number.

542323 is a deficient number, since it is larger than the sum of its proper divisors (1).

542323 is an equidigital number, since it uses as much as digits as its factorization.

542323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 19.

The square root of 542323 is about 736.4258279012. The cubic root of 542323 is about 81.5491316786.

Adding to 542323 its reverse (323245), we get a palindrome (865568).

The spelling of 542323 in words is "five hundred forty-two thousand, three hundred twenty-three".