1255103 has 2 divisors, whose sum is σ = 1255104. Its totient is φ = 1255102.

The previous prime is 1255081. The next prime is 1255109. The reversal of 1255103 is 3015521.

It is a strong prime.

It is an emirp because it is prime and its reverse (3015521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255103 - 2⁶ = 1255039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627551 + 627552.

It is an arithmetic number, because the mean of its divisors is an integer number (627552).

2^1255103 is an apocalyptic number.

1255103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255103 is an equidigital number, since it uses as much as digits as its factorization.

1255103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1255103 is about 1120.3137953270. The cubic root of 1255103 is about 107.8681232125.

The spelling of 1255103 in words is "one million, two hundred fifty-five thousand, one hundred three".