1603004213 has 2 divisors, whose sum is σ = 1603004214. Its totient is φ = 1603004212.

The previous prime is 1603004209. The next prime is 1603004233. The reversal of 1603004213 is 3124003061.

It is an a-pointer prime, because the next prime (1603004233) can be obtained adding 1603004213 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1521156004 + 81848209 = 39002^2 + 9047^2 .

It is an emirp because it is prime and its reverse (3124003061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1603004213 - 2² = 1603004209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1603004233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801502106 + 801502107.

It is an arithmetic number, because the mean of its divisors is an integer number (801502107).

Almost surely, 2^1603004213 is an apocalyptic number.

It is an amenable number.

1603004213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603004213 is an equidigital number, since it uses as much as digits as its factorization.

1603004213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1603004213 is about 40037.5350514989. The cubic root of 1603004213 is about 1170.3386686090.

Adding to 1603004213 its reverse (3124003061), we get a palindrome (4727007274).

The spelling of 1603004213 in words is "one billion, six hundred three million, four thousand, two hundred thirteen".