1012656529 has 2 divisors, whose sum is σ = 1012656530. Its totient is φ = 1012656528.

The previous prime is 1012656497. The next prime is 1012656577. The reversal of 1012656529 is 9256562101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919726929 + 92929600 = 30327^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012656529 - 2⁵ = 1012656497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012654529) 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, 506328264 + 506328265.

It is an arithmetic number, because the mean of its divisors is an integer number (506328265).

Almost surely, 2^1012656529 is an apocalyptic number.

It is an amenable number.

1012656529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012656529 is an equidigital number, since it uses as much as digits as its factorization.

1012656529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1012656529 is about 31822.2646742811. The cubic root of 1012656529 is about 1004.2011684669.

The spelling of 1012656529 in words is "one billion, twelve million, six hundred fifty-six thousand, five hundred twenty-nine".