1303573 has 2 divisors, whose sum is σ = 1303574. Its totient is φ = 1303572.

The previous prime is 1303567. The next prime is 1303591. The reversal of 1303573 is 3753031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 97969 = 1098^2 + 313^2 .

It is an emirp because it is prime and its reverse (3753031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303573 - 2⁵ = 1303541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651786 + 651787.

It is an arithmetic number, because the mean of its divisors is an integer number (651787).

2^1303573 is an apocalyptic number.

It is an amenable number.

1303573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303573 is an equidigital number, since it uses as much as digits as its factorization.

1303573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 22.

The square root of 1303573 is about 1141.7412141111. The cubic root of 1303573 is about 109.2391852197.

The spelling of 1303573 in words is "one million, three hundred three thousand, five hundred seventy-three".