1603073 has 2 divisors, whose sum is σ = 1603074. Its totient is φ = 1603072.

The previous prime is 1603067. The next prime is 1603079. The reversal of 1603073 is 3703061.

1603073 = 26⁴ + 27⁴ + 28⁴.

It is a balanced prime because it is at equal distance from previous prime (1603067) and next prime (1603079).

It can be written as a sum of positive squares in only one way, i.e., 868624 + 734449 = 932^2 + 857^2 .

It is an emirp because it is prime and its reverse (3703061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1603073 - 2⁴ = 1603057 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1603079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801536 + 801537.

It is an arithmetic number, because the mean of its divisors is an integer number (801537).

2^1603073 is an apocalyptic number.

It is an amenable number.

1603073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603073 is an equidigital number, since it uses as much as digits as its factorization.

1603073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 1603073 is about 1266.1251912824. The cubic root of 1603073 is about 117.0355408622.

The spelling of 1603073 in words is "one million, six hundred three thousand, seventy-three".