2133598409 has 2 divisors, whose sum is σ = 2133598410. Its totient is φ = 2133598408.

The previous prime is 2133598393. The next prime is 2133598433. The reversal of 2133598409 is 9048953312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2132592400 + 1006009 = 46180^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133598409 - 2⁴ = 2133598393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133598409.

It is not a weakly prime, because it can be changed into another prime (2133598309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066799204 + 1066799205.

It is an arithmetic number, because the mean of its divisors is an integer number (1066799205).

Almost surely, 2^2133598409 is an apocalyptic number.

It is an amenable number.

2133598409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133598409 is an equidigital number, since it uses as much as digits as its factorization.

2133598409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2133598409 is about 46190.8909743036. The cubic root of 2133598409 is about 1287.3724955456.

The spelling of 2133598409 in words is "two billion, one hundred thirty-three million, five hundred ninety-eight thousand, four hundred nine".