1248671 has 2 divisors, whose sum is σ = 1248672. Its totient is φ = 1248670.

The previous prime is 1248641. The next prime is 1248673. The reversal of 1248671 is 1768421.

It is a strong prime.

It is an emirp because it is prime and its reverse (1768421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1248671 is a prime.

Together with 1248673, 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 (1248673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624335 + 624336.

It is an arithmetic number, because the mean of its divisors is an integer number (624336).

2^1248671 is an apocalyptic number.

1248671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248671 is an equidigital number, since it uses as much as digits as its factorization.

1248671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 1248671 is about 1117.4394838200. The cubic root of 1248671 is about 107.6835443811.

The spelling of 1248671 in words is "one million, two hundred forty-eight thousand, six hundred seventy-one".