1255714813 has 2 divisors, whose sum is σ = 1255714814. Its totient is φ = 1255714812.

The previous prime is 1255714783. The next prime is 1255714841. The reversal of 1255714813 is 3184175521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139872644 + 115842169 = 33762^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255714813 - 2⁵ = 1255714781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255714013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627857406 + 627857407.

It is an arithmetic number, because the mean of its divisors is an integer number (627857407).

Almost surely, 2^1255714813 is an apocalyptic number.

It is an amenable number.

1255714813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255714813 is an equidigital number, since it uses as much as digits as its factorization.

1255714813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 37.

The square root of 1255714813 is about 35436.0665565466. The cubic root of 1255714813 is about 1078.8564751120.

The spelling of 1255714813 in words is "one billion, two hundred fifty-five million, seven hundred fourteen thousand, eight hundred thirteen".