1255403340097 has 2 divisors, whose sum is σ = 1255403340098. Its totient is φ = 1255403340096.

The previous prime is 1255403340077. The next prime is 1255403340223. The reversal of 1255403340097 is 7900433045521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190366099521 + 65037240576 = 1091039^2 + 255024^2 .

It is an emirp because it is prime and its reverse (7900433045521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255403340097 - 2⁷ = 1255403339969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255403340077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627701670048 + 627701670049.

It is an arithmetic number, because the mean of its divisors is an integer number (627701670049).

Almost surely, 2^{1255403340097} is an apocalyptic number.

It is an amenable number.

1255403340097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255403340097 is an equidigital number, since it uses as much as digits as its factorization.

1255403340097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 1255403340097 in words is "one trillion, two hundred fifty-five billion, four hundred three million, three hundred forty thousand, ninety-seven".