542050123 has 4 divisors (see below), whose sum is σ = 547116120. Its totient is φ = 536984128.

The previous prime is 542050121. The next prime is 542050129. The reversal of 542050123 is 321050245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321050245 = 5 ⋅64210049.

It is a cyclic number.

It is not a de Polignac number, because 542050123 - 2¹ = 542050121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542050094 and 542050103.

It is not an unprimeable number, because it can be changed into a prime (542050121) 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 in 3 ways as a sum of consecutive naturals, for example, 2532838 + ... + 2533051.

It is an arithmetic number, because the mean of its divisors is an integer number (136779030).

Almost surely, 2^542050123 is an apocalyptic number.

542050123 is a deficient number, since it is larger than the sum of its proper divisors (5065997).

542050123 is a wasteful number, since it uses less digits than its factorization.

542050123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065996.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 542050123 is about 23281.9699123592. The cubic root of 542050123 is about 815.3545187545.

The spelling of 542050123 in words is "five hundred forty-two million, fifty thousand, one hundred twenty-three".