1255123 has 2 divisors, whose sum is σ = 1255124. Its totient is φ = 1255122.

The previous prime is 1255117. The next prime is 1255129. The reversal of 1255123 is 3215521.

It is a balanced prime because it is at equal distance from previous prime (1255117) and next prime (1255129).

It is a cyclic number.

It is not a de Polignac number, because 1255123 - 2¹⁷ = 1124051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255123.

It is not a weakly prime, because it can be changed into another prime (1255129) 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, 627561 + 627562.

It is an arithmetic number, because the mean of its divisors is an integer number (627562).

2^1255123 is an apocalyptic number.

1255123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255123 is an equidigital number, since it uses as much as digits as its factorization.

1255123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 19.

The square root of 1255123 is about 1120.3227213620. The cubic root of 1255123 is about 107.8686961671.

It can be divided in two parts, 1255 and 123, that added together give a triangular number (1378 = T₅₂).

The spelling of 1255123 in words is "one million, two hundred fifty-five thousand, one hundred twenty-three".