1255343429 has 2 divisors, whose sum is σ = 1255343430. Its totient is φ = 1255343428.

The previous prime is 1255343407. The next prime is 1255343431. The reversal of 1255343429 is 9243435521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1169503204 + 85840225 = 34198^2 + 9265^2 .

It is an emirp because it is prime and its reverse (9243435521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255343429 - 2²⁴ = 1238566213 is a prime.

Together with 1255343431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255343392 and 1255343401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255343449) 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, 627671714 + 627671715.

It is an arithmetic number, because the mean of its divisors is an integer number (627671715).

Almost surely, 2^1255343429 is an apocalyptic number.

It is an amenable number.

1255343429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255343429 is an equidigital number, since it uses as much as digits as its factorization.

1255343429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 1255343429 is about 35430.8259711794. The cubic root of 1255343429 is about 1078.7501055405.

The spelling of 1255343429 in words is "one billion, two hundred fifty-five million, three hundred forty-three thousand, four hundred twenty-nine".