1603249 has 2 divisors, whose sum is σ = 1603250. Its totient is φ = 1603248.

The previous prime is 1603241. The next prime is 1603267. The reversal of 1603249 is 9423061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1575025 + 28224 = 1255^2 + 168^2 .

It is an emirp because it is prime and its reverse (9423061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1603249 - 2³ = 1603241 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1603241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801624 + 801625.

It is an arithmetic number, because the mean of its divisors is an integer number (801625).

2^1603249 is an apocalyptic number.

It is an amenable number.

1603249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603249 is an equidigital number, since it uses as much as digits as its factorization.

1603249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1603249 is about 1266.1946927704. The cubic root of 1603249 is about 117.0398237825.

The spelling of 1603249 in words is "one million, six hundred three thousand, two hundred forty-nine".