2133501509 has 2 divisors, whose sum is σ = 2133501510. Its totient is φ = 2133501508.

The previous prime is 2133501497. The next prime is 2133501523. The reversal of 2133501509 is 9051053312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1881390625 + 252110884 = 43375^2 + 15878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133501509 - 2¹⁶ = 2133435973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133501599) 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, 1066750754 + 1066750755.

It is an arithmetic number, because the mean of its divisors is an integer number (1066750755).

Almost surely, 2^2133501509 is an apocalyptic number.

It is an amenable number.

2133501509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133501509 is an equidigital number, since it uses as much as digits as its factorization.

2133501509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 2133501509 is about 46189.8420542872. The cubic root of 2133501509 is about 1287.3530060480.

The spelling of 2133501509 in words is "two billion, one hundred thirty-three million, five hundred one thousand, five hundred nine".