1603632113 has 2 divisors, whose sum is σ = 1603632114. Its totient is φ = 1603632112.

The previous prime is 1603632109. The next prime is 1603632119. The reversal of 1603632113 is 3112363061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855445504 + 748186609 = 29248^2 + 27353^2 .

It is an emirp because it is prime and its reverse (3112363061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1603632113 - 2² = 1603632109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1603632119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801816056 + 801816057.

It is an arithmetic number, because the mean of its divisors is an integer number (801816057).

Almost surely, 2^1603632113 is an apocalyptic number.

It is an amenable number.

1603632113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603632113 is an equidigital number, since it uses as much as digits as its factorization.

1603632113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1603632113 is about 40045.3756756008. The cubic root of 1603632113 is about 1170.4914566713.

Adding to 1603632113 its reverse (3112363061), we get a palindrome (4715995174).

The spelling of 1603632113 in words is "one billion, six hundred three million, six hundred thirty-two thousand, one hundred thirteen".