1255116949193 has 2 divisors, whose sum is σ = 1255116949194. Its totient is φ = 1255116949192.

The previous prime is 1255116949153. The next prime is 1255116949211. The reversal of 1255116949193 is 3919496115521.

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., 1136927447824 + 118189501369 = 1066268^2 + 343787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255116949193 - 2⁶ = 1255116949129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255116949153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627558474596 + 627558474597.

It is an arithmetic number, because the mean of its divisors is an integer number (627558474597).

Almost surely, 2^{1255116949193} is an apocalyptic number.

It is an amenable number.

1255116949193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255116949193 is an equidigital number, since it uses as much as digits as its factorization.

1255116949193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 56.

The spelling of 1255116949193 in words is "one trillion, two hundred fifty-five billion, one hundred sixteen million, nine hundred forty-nine thousand, one hundred ninety-three".