542050129 has 2 divisors, whose sum is σ = 542050130. Its totient is φ = 542050128.

The previous prime is 542050121. The next prime is 542050141. The reversal of 542050129 is 921050245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511800129 + 30250000 = 22623^2 + 5500^2 .

It is a cyclic number.

It is not a de Polignac number, because 542050129 - 2³ = 542050121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542050097 and 542050106.

It is not a weakly prime, because it can be changed into another prime (542050121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271025064 + 271025065.

It is an arithmetic number, because the mean of its divisors is an integer number (271025065).

Almost surely, 2^542050129 is an apocalyptic number.

It is an amenable number.

542050129 is a deficient number, since it is larger than the sum of its proper divisors (1).

542050129 is an equidigital number, since it uses as much as digits as its factorization.

542050129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 542050129 is about 23281.9700412143. The cubic root of 542050129 is about 815.3545217629.

The spelling of 542050129 in words is "five hundred forty-two million, fifty thousand, one hundred twenty-nine".