2109533 has 2 divisors, whose sum is σ = 2109534. Its totient is φ = 2109532.

The previous prime is 2109521. The next prime is 2109553. The reversal of 2109533 is 3359012.

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., 1338649 + 770884 = 1157^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2109533 - 2⁸ = 2109277 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2109499 and 2109508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054766 + 1054767.

It is an arithmetic number, because the mean of its divisors is an integer number (1054767).

2^2109533 is an apocalyptic number.

It is an amenable number.

2109533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109533 is an equidigital number, since it uses as much as digits as its factorization.

2109533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2109533 is about 1452.4231477087. The cubic root of 2109533 is about 128.2513980091.

The spelling of 2109533 in words is "two million, one hundred nine thousand, five hundred thirty-three".