542243431 has 2 divisors, whose sum is σ = 542243432. Its totient is φ = 542243430.

The previous prime is 542243417. The next prime is 542243519. The reversal of 542243431 is 134342245.

It is a happy number.

542243431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542243431 - 2¹⁵ = 542210663 is a prime.

It is a super-2 number, since 2×542243431² = 588055876925303522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542243431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542243411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271121715 + 271121716.

It is an arithmetic number, because the mean of its divisors is an integer number (271121716).

Almost surely, 2^542243431 is an apocalyptic number.

542243431 is a deficient number, since it is larger than the sum of its proper divisors (1).

542243431 is an equidigital number, since it uses as much as digits as its factorization.

542243431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 28.

The square root of 542243431 is about 23286.1209951336. The cubic root of 542243431 is about 815.4514321899.

Adding to 542243431 its reverse (134342245), we get a palindrome (676585676).

The spelling of 542243431 in words is "five hundred forty-two million, two hundred forty-three thousand, four hundred thirty-one".