542330149 has 2 divisors, whose sum is σ = 542330150. Its totient is φ = 542330148.

The previous prime is 542330137. The next prime is 542330153. The reversal of 542330149 is 941033245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520661124 + 21669025 = 22818^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 542330149 - 2²⁵ = 508775717 is a prime.

It is equal to p_28464142 and since 542330149 and 28464142 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542330149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542330449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271165074 + 271165075.

It is an arithmetic number, because the mean of its divisors is an integer number (271165075).

Almost surely, 2^542330149 is an apocalyptic number.

It is an amenable number.

542330149 is a deficient number, since it is larger than the sum of its proper divisors (1).

542330149 is an equidigital number, since it uses as much as digits as its factorization.

542330149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 542330149 is about 23287.9829311171. The cubic root of 542330149 is about 815.4949000888.

The spelling of 542330149 in words is "five hundred forty-two million, three hundred thirty thousand, one hundred forty-nine".