1296734029 has 2 divisors, whose sum is σ = 1296734030. Its totient is φ = 1296734028.

The previous prime is 1296734027. The next prime is 1296734057. The reversal of 1296734029 is 9204376921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1135824804 + 160909225 = 33702^2 + 12685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1296734029 - 2¹ = 1296734027 is a prime.

Together with 1296734027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1296734027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648367014 + 648367015.

It is an arithmetic number, because the mean of its divisors is an integer number (648367015).

Almost surely, 2^1296734029 is an apocalyptic number.

It is an amenable number.

1296734029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296734029 is an equidigital number, since it uses as much as digits as its factorization.

1296734029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1296734029 is about 36010.1934040905. The cubic root of 1296734029 is about 1090.4781531491.

The spelling of 1296734029 in words is "one billion, two hundred ninety-six million, seven hundred thirty-four thousand, twenty-nine".