1204289 has 2 divisors, whose sum is σ = 1204290. Its totient is φ = 1204288.

The previous prime is 1204279. The next prime is 1204309. The reversal of 1204289 is 9824021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 153664 = 1025^2 + 392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204289 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1204219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602144 + 602145.

It is an arithmetic number, because the mean of its divisors is an integer number (602145).

2^1204289 is an apocalyptic number.

It is an amenable number.

1204289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204289 is an equidigital number, since it uses as much as digits as its factorization.

1204289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1204289 is about 1097.4010205937. The cubic root of 1204289 is about 106.3923103437.

The spelling of 1204289 in words is "one million, two hundred four thousand, two hundred eighty-nine".