542284381 has 2 divisors, whose sum is σ = 542284382. Its totient is φ = 542284380.

The previous prime is 542284357. The next prime is 542284397. The reversal of 542284381 is 183482245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503284356 + 39000025 = 22434^2 + 6245^2 .

It is a cyclic number.

It is not a de Polignac number, because 542284381 - 2¹¹ = 542282333 is a prime.

It is a super-2 number, since 2×542284381² = 588144699753106322, 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 542284381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542284331) 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, 271142190 + 271142191.

It is an arithmetic number, because the mean of its divisors is an integer number (271142191).

Almost surely, 2^542284381 is an apocalyptic number.

It is an amenable number.

542284381 is a deficient number, since it is larger than the sum of its proper divisors (1).

542284381 is an equidigital number, since it uses as much as digits as its factorization.

542284381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 37.

The square root of 542284381 is about 23287.0002576545. Note that the first 3 decimals coincide. The cubic root of 542284381 is about 815.4719591916.

The spelling of 542284381 in words is "five hundred forty-two million, two hundred eighty-four thousand, three hundred eighty-one".