1230871 has 2 divisors, whose sum is σ = 1230872. Its totient is φ = 1230870.

The previous prime is 1230869. The next prime is 1230881. The reversal of 1230871 is 1780321.

It is a weak prime.

It is an emirp because it is prime and its reverse (1780321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230871 - 2¹ = 1230869 is a prime.

Together with 1230869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615435 + 615436.

It is an arithmetic number, because the mean of its divisors is an integer number (615436).

2^1230871 is an apocalyptic number.

1230871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230871 is an equidigital number, since it uses as much as digits as its factorization.

1230871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1230871 is about 1109.4462582748. The cubic root of 1230871 is about 107.1694116615.

The spelling of 1230871 in words is "one million, two hundred thirty thousand, eight hundred seventy-one".