1255313 has 2 divisors, whose sum is σ = 1255314. Its totient is φ = 1255312.

The previous prime is 1255307. The next prime is 1255321. The reversal of 1255313 is 3135521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1236544 + 18769 = 1112^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255313 - 2⁶ = 1255249 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 (1255333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627656 + 627657.

It is an arithmetic number, because the mean of its divisors is an integer number (627657).

2^1255313 is an apocalyptic number.

It is an amenable number.

1255313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255313 is an equidigital number, since it uses as much as digits as its factorization.

1255313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 20.

The square root of 1255313 is about 1120.4075151479. The cubic root of 1255313 is about 107.8741389320.

The spelling of 1255313 in words is "one million, two hundred fifty-five thousand, three hundred thirteen".