2132820709 has 2 divisors, whose sum is σ = 2132820710. Its totient is φ = 2132820708.

The previous prime is 2132820643. The next prime is 2132820713. The reversal of 2132820709 is 9070282312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1232220609 + 900600100 = 35103^2 + 30010^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132820709 - 2²¹ = 2130723557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132821709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066410354 + 1066410355.

It is an arithmetic number, because the mean of its divisors is an integer number (1066410355).

Almost surely, 2^2132820709 is an apocalyptic number.

It is an amenable number.

2132820709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132820709 is an equidigital number, since it uses as much as digits as its factorization.

2132820709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2132820709 is about 46182.4718805739. The cubic root of 2132820709 is about 1287.2160600991.

The spelling of 2132820709 in words is "two billion, one hundred thirty-two million, eight hundred twenty thousand, seven hundred nine".