1255102729 has 2 divisors, whose sum is σ = 1255102730. Its totient is φ = 1255102728.

The previous prime is 1255102697. The next prime is 1255102733. The reversal of 1255102729 is 9272015521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651270400 + 603832329 = 25520^2 + 24573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255102729 - 2⁵ = 1255102697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255102694 and 1255102703.

It is not a weakly prime, because it can be changed into another prime (1253102729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627551364 + 627551365.

It is an arithmetic number, because the mean of its divisors is an integer number (627551365).

Almost surely, 2^1255102729 is an apocalyptic number.

It is an amenable number.

1255102729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255102729 is an equidigital number, since it uses as much as digits as its factorization.

1255102729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 1255102729 is about 35427.4290486905. The cubic root of 1255102729 is about 1078.6811544892.

The spelling of 1255102729 in words is "one billion, two hundred fifty-five million, one hundred two thousand, seven hundred twenty-nine".