542124049 has 2 divisors, whose sum is σ = 542124050. Its totient is φ = 542124048.

The previous prime is 542124041. The next prime is 542124059. The reversal of 542124049 is 940421245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541958400 + 165649 = 23280^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 542124049 - 2³ = 542124041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542124049.

It is not a weakly prime, because it can be changed into another prime (542124041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271062024 + 271062025.

It is an arithmetic number, because the mean of its divisors is an integer number (271062025).

Almost surely, 2^542124049 is an apocalyptic number.

It is an amenable number.

542124049 is a deficient number, since it is larger than the sum of its proper divisors (1).

542124049 is an equidigital number, since it uses as much as digits as its factorization.

542124049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 542124049 is about 23283.5574816221. The cubic root of 542124049 is about 815.3915836898.

The spelling of 542124049 in words is "five hundred forty-two million, one hundred twenty-four thousand, forty-nine".