542030249 has 2 divisors, whose sum is σ = 542030250. Its totient is φ = 542030248.

The previous prime is 542030197. The next prime is 542030287. The reversal of 542030249 is 942030245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461605225 + 80425024 = 21485^2 + 8968^2 .

It is a cyclic number.

It is not a de Polignac number, because 542030249 - 2¹⁶ = 541964713 is a prime.

It is not a weakly prime, because it can be changed into another prime (542030299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271015124 + 271015125.

It is an arithmetic number, because the mean of its divisors is an integer number (271015125).

Almost surely, 2^542030249 is an apocalyptic number.

It is an amenable number.

542030249 is a deficient number, since it is larger than the sum of its proper divisors (1).

542030249 is an equidigital number, since it uses as much as digits as its factorization.

542030249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 542030249 is about 23281.5430974839. The cubic root of 542030249 is about 815.3445537758.

The spelling of 542030249 in words is "five hundred forty-two million, thirty thousand, two hundred forty-nine".