204542029 has 2 divisors, whose sum is σ = 204542030. Its totient is φ = 204542028.

The previous prime is 204542027. The next prime is 204542119. The reversal of 204542029 is 920245402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178837129 + 25704900 = 13373^2 + 5070^2 .

It is a cyclic number.

It is not a de Polignac number, because 204542029 - 2¹ = 204542027 is a prime.

Together with 204542027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 204541988 and 204542006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204542027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102271014 + 102271015.

It is an arithmetic number, because the mean of its divisors is an integer number (102271015).

Almost surely, 2^204542029 is an apocalyptic number.

It is an amenable number.

204542029 is a deficient number, since it is larger than the sum of its proper divisors (1).

204542029 is an equidigital number, since it uses as much as digits as its factorization.

204542029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 204542029 is about 14301.8190801031. The cubic root of 204542029 is about 589.1974427494.

The spelling of 204542029 in words is "two hundred four million, five hundred forty-two thousand, twenty-nine".