1255427 has 2 divisors, whose sum is σ = 1255428. Its totient is φ = 1255426.

The previous prime is 1255421. The next prime is 1255451. The reversal of 1255427 is 7245521.

It is a weak prime.

It is an emirp because it is prime and its reverse (7245521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255427 - 2¹⁶ = 1189891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255396 and 1255405.

It is not a weakly prime, because it can be changed into another prime (1255421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627713 + 627714.

It is an arithmetic number, because the mean of its divisors is an integer number (627714).

2^1255427 is an apocalyptic number.

1255427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255427 is an equidigital number, since it uses as much as digits as its factorization.

1255427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2800, while the sum is 26.

The square root of 1255427 is about 1120.4583883393. The cubic root of 1255427 is about 107.8774043273.

The spelling of 1255427 in words is "one million, two hundred fifty-five thousand, four hundred twenty-seven".