542047357 has 2 divisors, whose sum is σ = 542047358. Its totient is φ = 542047356.

The previous prime is 542047343. The next prime is 542047391. The reversal of 542047357 is 753740245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459073476 + 82973881 = 21426^2 + 9109^2 .

It is a cyclic number.

It is not a de Polignac number, because 542047357 - 2¹⁵ = 542014589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542047657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271023678 + 271023679.

It is an arithmetic number, because the mean of its divisors is an integer number (271023679).

Almost surely, 2^542047357 is an apocalyptic number.

It is an amenable number.

542047357 is a deficient number, since it is larger than the sum of its proper divisors (1).

542047357 is an equidigital number, since it uses as much as digits as its factorization.

542047357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 37.

The square root of 542047357 is about 23281.9105100935. The cubic root of 542047357 is about 815.3531318751.

The spelling of 542047357 in words is "five hundred forty-two million, forty-seven thousand, three hundred fifty-seven".