542291047 has 2 divisors, whose sum is σ = 542291048. Its totient is φ = 542291046.

The previous prime is 542291021. The next prime is 542291059. The reversal of 542291047 is 740192245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542291047 - 2¹⁵ = 542258279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542261047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271145523 + 271145524.

It is an arithmetic number, because the mean of its divisors is an integer number (271145524).

Almost surely, 2^542291047 is an apocalyptic number.

542291047 is a deficient number, since it is larger than the sum of its proper divisors (1).

542291047 is an equidigital number, since it uses as much as digits as its factorization.

542291047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 542291047 is about 23287.1433842797. The cubic root of 542291047 is about 815.4753005589.

It can be divided in two parts, 5422 and 91047, that added together give a palindrome (96469).

The spelling of 542291047 in words is "five hundred forty-two million, two hundred ninety-one thousand, forty-seven".