2073521 has 2 divisors, whose sum is σ = 2073522. Its totient is φ = 2073520.

The previous prime is 2073481. The next prime is 2073563. The reversal of 2073521 is 1253702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 57121 = 1420^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 2073521 - 2⁶ = 2073457 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2073493 and 2073502.

It is not a weakly prime, because it can be changed into another prime (2073121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036760 + 1036761.

It is an arithmetic number, because the mean of its divisors is an integer number (1036761).

2^2073521 is an apocalyptic number.

It is an amenable number.

2073521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2073521 is an equidigital number, since it uses as much as digits as its factorization.

2073521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2073521 is about 1439.9725691832. The cubic root of 2073521 is about 127.5174088750.

The spelling of 2073521 in words is "two million, seventy-three thousand, five hundred twenty-one".