542231149 has 2 divisors, whose sum is σ = 542231150. Its totient is φ = 542231148.

The previous prime is 542231143. The next prime is 542231153. The reversal of 542231149 is 941132245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444577225 + 97653924 = 21085^2 + 9882^2 .

It is a cyclic number.

It is not a de Polignac number, because 542231149 - 2⁵ = 542231117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542231149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542231143) 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, 271115574 + 271115575.

It is an arithmetic number, because the mean of its divisors is an integer number (271115575).

Almost surely, 2^542231149 is an apocalyptic number.

It is an amenable number.

542231149 is a deficient number, since it is larger than the sum of its proper divisors (1).

542231149 is an equidigital number, since it uses as much as digits as its factorization.

542231149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 542231149 is about 23285.8572743200. The cubic root of 542231149 is about 815.4452753917.

The spelling of 542231149 in words is "five hundred forty-two million, two hundred thirty-one thousand, one hundred forty-nine".