542441531 has 2 divisors, whose sum is σ = 542441532. Its totient is φ = 542441530.

The previous prime is 542441513. The next prime is 542441573. The reversal of 542441531 is 135144245.

Together with previous prime (542441513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542441531 - 2⁶ = 542441467 is a prime.

It is a super-2 number, since 2×542441531² = 588485629107247922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 542441494 and 542441503.

It is not a weakly prime, because it can be changed into another prime (542447531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271220765 + 271220766.

It is an arithmetic number, because the mean of its divisors is an integer number (271220766).

Almost surely, 2^542441531 is an apocalyptic number.

542441531 is a deficient number, since it is larger than the sum of its proper divisors (1).

542441531 is an equidigital number, since it uses as much as digits as its factorization.

542441531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 542441531 is about 23290.3742133955. The cubic root of 542441531 is about 815.5507241630.

Adding to 542441531 its reverse (135144245), we get a palindrome (677585776).

The spelling of 542441531 in words is "five hundred forty-two million, four hundred forty-one thousand, five hundred thirty-one".