1073521 has 2 divisors, whose sum is σ = 1073522. Its totient is φ = 1073520.

The previous prime is 1073509. The next prime is 1073537. The reversal of 1073521 is 1253701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 225 = 1036^2 + 15^2 .

It is an emirp because it is prime and its reverse (1253701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1073521 - 2⁷ = 1073393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1073221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536760 + 536761.

It is an arithmetic number, because the mean of its divisors is an integer number (536761).

2^1073521 is an apocalyptic number.

It is an amenable number.

1073521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073521 is an equidigital number, since it uses as much as digits as its factorization.

1073521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1073521 is about 1036.1085850431. The cubic root of 1073521 is about 102.3929797128.

The spelling of 1073521 in words is "one million, seventy-three thousand, five hundred twenty-one".