2013173 has 2 divisors, whose sum is σ = 2013174. Its totient is φ = 2013172.

The previous prime is 2013169. The next prime is 2013181. The reversal of 2013173 is 3713102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270129 + 743044 = 1127^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013173 - 2² = 2013169 is a prime.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006586 + 1006587.

It is an arithmetic number, because the mean of its divisors is an integer number (1006587).

2^2013173 is an apocalyptic number.

It is an amenable number.

2013173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013173 is an equidigital number, since it uses as much as digits as its factorization.

2013173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 2013173 is about 1418.8632774161. The cubic root of 2013173 is about 126.2681155588.

Adding to 2013173 its reverse (3713102), we get a palindrome (5726275).

The spelling of 2013173 in words is "two million, thirteen thousand, one hundred seventy-three".