120204289 has 2 divisors, whose sum is σ = 120204290. Its totient is φ = 120204288.

The previous prime is 120204277. The next prime is 120204311. The reversal of 120204289 is 982402021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94245264 + 25959025 = 9708^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 120204289 - 2⁹ = 120203777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120204269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60102144 + 60102145.

It is an arithmetic number, because the mean of its divisors is an integer number (60102145).

Almost surely, 2^120204289 is an apocalyptic number.

It is an amenable number.

120204289 is a deficient number, since it is larger than the sum of its proper divisors (1).

120204289 is an equidigital number, since it uses as much as digits as its factorization.

120204289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 120204289 is about 10963.7716594245. The cubic root of 120204289 is about 493.5221561806.

The spelling of 120204289 in words is "one hundred twenty million, two hundred four thousand, two hundred eighty-nine".