1204871 has 2 divisors, whose sum is σ = 1204872. Its totient is φ = 1204870.

The previous prime is 1204859. The next prime is 1204873. The reversal of 1204871 is 1784021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1784021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1204871 - 2¹⁸ = 942727 is a prime.

Together with 1204873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602435 + 602436.

It is an arithmetic number, because the mean of its divisors is an integer number (602436).

2^1204871 is an apocalyptic number.

1204871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204871 is an equidigital number, since it uses as much as digits as its factorization.

1204871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1204871 is about 1097.6661605424. Note that the first 3 decimals coincide. The cubic root of 1204871 is about 106.4094464167.

Adding to 1204871 its reverse (1784021), we get a palindrome (2988892).

The spelling of 1204871 in words is "one million, two hundred four thousand, eight hundred seventy-one".