542000149 has 2 divisors, whose sum is σ = 542000150. Its totient is φ = 542000148.

The previous prime is 542000143. The next prime is 542000153. The reversal of 542000149 is 941000245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537080625 + 4919524 = 23175^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 542000149 - 2⁹ = 541999637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542000143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271000074 + 271000075.

It is an arithmetic number, because the mean of its divisors is an integer number (271000075).

Almost surely, 2^542000149 is an apocalyptic number.

It is an amenable number.

542000149 is a deficient number, since it is larger than the sum of its proper divisors (1).

542000149 is an equidigital number, since it uses as much as digits as its factorization.

542000149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 542000149 is about 23280.8966536944. The cubic root of 542000149 is about 815.3294609371.

The spelling of 542000149 in words is "five hundred forty-two million, one hundred forty-nine", and thus it is an aban number.