2146285709 has 2 divisors, whose sum is σ = 2146285710. Its totient is φ = 2146285708.

The previous prime is 2146285699. The next prime is 2146285741. The reversal of 2146285709 is 9075826412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1791151684 + 355134025 = 42322^2 + 18845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146285709 - 2⁴ = 2146285693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2146285709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146285769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073142854 + 1073142855.

It is an arithmetic number, because the mean of its divisors is an integer number (1073142855).

Almost surely, 2^2146285709 is an apocalyptic number.

It is an amenable number.

2146285709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146285709 is an equidigital number, since it uses as much as digits as its factorization.

2146285709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2146285709 is about 46328.0229342889. The cubic root of 2146285709 is about 1289.9192123355.

The spelling of 2146285709 in words is "two billion, one hundred forty-six million, two hundred eighty-five thousand, seven hundred nine".