1255102697 has 2 divisors, whose sum is σ = 1255102698. Its totient is φ = 1255102696.

The previous prime is 1255102679. The next prime is 1255102729. The reversal of 1255102697 is 7962015521.

It is a happy number.

Together with previous prime (1255102679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229133481 + 25969216 = 35059^2 + 5096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255102697 - 2⁸ = 1255102441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255102697.

It is not a weakly prime, because it can be changed into another prime (1255102657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627551348 + 627551349.

It is an arithmetic number, because the mean of its divisors is an integer number (627551349).

Almost surely, 2^1255102697 is an apocalyptic number.

It is an amenable number.

1255102697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255102697 is an equidigital number, since it uses as much as digits as its factorization.

1255102697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1255102697 is about 35427.4285970630. The cubic root of 1255102697 is about 1078.6811453219.

The spelling of 1255102697 in words is "one billion, two hundred fifty-five million, one hundred two thousand, six hundred ninety-seven".