1255393 has 2 divisors, whose sum is σ = 1255394. Its totient is φ = 1255392.

The previous prime is 1255391. The next prime is 1255421. The reversal of 1255393 is 3935521.

It is an a-pointer prime, because the next prime (1255421) can be obtained adding 1255393 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203409 + 51984 = 1097^2 + 228^2 .

It is an emirp because it is prime and its reverse (3935521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255393 - 2¹ = 1255391 is a prime.

Together with 1255391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1255391) 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, 627696 + 627697.

It is an arithmetic number, because the mean of its divisors is an integer number (627697).

2^1255393 is an apocalyptic number.

It is an amenable number.

1255393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255393 is an equidigital number, since it uses as much as digits as its factorization.

1255393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 28.

The square root of 1255393 is about 1120.4432158749. The cubic root of 1255393 is about 107.8764304581.

The spelling of 1255393 in words is "one million, two hundred fifty-five thousand, three hundred ninety-three".