542147803 has 2 divisors, whose sum is σ = 542147804. Its totient is φ = 542147802.

The previous prime is 542147761. The next prime is 542147821. The reversal of 542147803 is 308741245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542147803 - 2¹⁷ = 542016731 is a prime.

It is equal to p_28455055 and since 542147803 and 28455055 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (542147603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271073901 + 271073902.

It is an arithmetic number, because the mean of its divisors is an integer number (271073902).

Almost surely, 2^542147803 is an apocalyptic number.

542147803 is a deficient number, since it is larger than the sum of its proper divisors (1).

542147803 is an equidigital number, since it uses as much as digits as its factorization.

542147803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 542147803 is about 23284.0675784967. The cubic root of 542147803 is about 815.4034927285.

The spelling of 542147803 in words is "five hundred forty-two million, one hundred forty-seven thousand, eight hundred three".