1026142609 has 2 divisors, whose sum is σ = 1026142610. Its totient is φ = 1026142608.

The previous prime is 1026142591. The next prime is 1026142657. The reversal of 1026142609 is 9062416201.

1026142609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 950365584 + 75777025 = 30828^2 + 8705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026142609 - 2⁹ = 1026142097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026142679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513071304 + 513071305.

It is an arithmetic number, because the mean of its divisors is an integer number (513071305).

Almost surely, 2^1026142609 is an apocalyptic number.

It is an amenable number.

1026142609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026142609 is an equidigital number, since it uses as much as digits as its factorization.

1026142609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1026142609 is about 32033.4607715120. The cubic root of 1026142609 is about 1008.6393496945.

The spelling of 1026142609 in words is "one billion, twenty-six million, one hundred forty-two thousand, six hundred nine".