13171603 has 2 divisors, whose sum is σ = 13171604. Its totient is φ = 13171602.

The previous prime is 13171601. The next prime is 13171607. The reversal of 13171603 is 30617131.

It is a weak prime.

It is an emirp because it is prime and its reverse (30617131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13171603 - 2¹ = 13171601 is a prime.

It is a super-2 number, since 2×13171603² = 346982251179218, which contains 22 as substring.

Together with 13171601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13171601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585801 + 6585802.

It is an arithmetic number, because the mean of its divisors is an integer number (6585802).

Almost surely, 2^13171603 is an apocalyptic number.

13171603 is a deficient number, since it is larger than the sum of its proper divisors (1).

13171603 is an equidigital number, since it uses as much as digits as its factorization.

13171603 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 22.

The square root of 13171603 is about 3629.2703123355. The cubic root of 13171603 is about 236.1635548722.

Adding to 13171603 its reverse (30617131), we get a palindrome (43788734).

The spelling of 13171603 in words is "thirteen million, one hundred seventy-one thousand, six hundred three".