542050121 has 2 divisors, whose sum is σ = 542050122. Its totient is φ = 542050120.

The previous prime is 542050063. The next prime is 542050129. The reversal of 542050121 is 121050245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400440121 + 141610000 = 20011^2 + 11900^2 .

It is a cyclic number.

It is not a de Polignac number, because 542050121 - 2⁶ = 542050057 is a prime.

It is a super-2 number, since 2×542050121² = 587636667352229282, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 542050093 and 542050102.

It is not a weakly prime, because it can be changed into another prime (542050129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271025060 + 271025061.

It is an arithmetic number, because the mean of its divisors is an integer number (271025061).

Almost surely, 2^542050121 is an apocalyptic number.

It is an amenable number.

542050121 is a deficient number, since it is larger than the sum of its proper divisors (1).

542050121 is an equidigital number, since it uses as much as digits as its factorization.

542050121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 542050121 is about 23281.9698694075. The cubic root of 542050121 is about 815.3545177517.

The spelling of 542050121 in words is "five hundred forty-two million, fifty thousand, one hundred twenty-one".