542446123 has 2 divisors, whose sum is σ = 542446124. Its totient is φ = 542446122.

The previous prime is 542446117. The next prime is 542446133. The reversal of 542446123 is 321644245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542446123 - 2²¹ = 540348971 is a prime.

It is a super-2 number, since 2×542446123² = 588495592715462258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542446133) 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, 271223061 + 271223062.

It is an arithmetic number, because the mean of its divisors is an integer number (271223062).

Almost surely, 2^542446123 is an apocalyptic number.

542446123 is a deficient number, since it is larger than the sum of its proper divisors (1).

542446123 is an equidigital number, since it uses as much as digits as its factorization.

542446123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 542446123 is about 23290.4727946858. The cubic root of 542446123 is about 815.5530254853.

The spelling of 542446123 in words is "five hundred forty-two million, four hundred forty-six thousand, one hundred twenty-three".