1255847 has 2 divisors, whose sum is σ = 1255848. Its totient is φ = 1255846.

The previous prime is 1255831. The next prime is 1255861. The reversal of 1255847 is 7485521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255847 - 2⁴ = 1255831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627923 + 627924.

It is an arithmetic number, because the mean of its divisors is an integer number (627924).

2^1255847 is an apocalyptic number.

1255847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255847 is an equidigital number, since it uses as much as digits as its factorization.

1255847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 32.

The square root of 1255847 is about 1120.6457959587. The cubic root of 1255847 is about 107.8894330257.

The spelling of 1255847 in words is "one million, two hundred fifty-five thousand, eight hundred forty-seven".