1312255093 has 2 divisors, whose sum is σ = 1312255094. Its totient is φ = 1312255092.

The previous prime is 1312255067. The next prime is 1312255097. The reversal of 1312255093 is 3905522131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097398129 + 214856964 = 33127^2 + 14658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312255093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312255097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656127546 + 656127547.

It is an arithmetic number, because the mean of its divisors is an integer number (656127547).

Almost surely, 2^1312255093 is an apocalyptic number.

It is an amenable number.

1312255093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312255093 is an equidigital number, since it uses as much as digits as its factorization.

1312255093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1312255093 is about 36225.0616700648. The cubic root of 1312255093 is about 1094.8116807425.

The spelling of 1312255093 in words is "one billion, three hundred twelve million, two hundred fifty-five thousand, ninety-three".