1373173 has 2 divisors, whose sum is σ = 1373174. Its totient is φ = 1373172.

The previous prime is 1373167. The next prime is 1373189. The reversal of 1373173 is 3713731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887364 + 485809 = 942^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373173 - 2⁹ = 1372661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686586 + 686587.

It is an arithmetic number, because the mean of its divisors is an integer number (686587).

2^1373173 is an apocalyptic number.

It is an amenable number.

1373173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373173 is an equidigital number, since it uses as much as digits as its factorization.

1373173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323, while the sum is 25.

The square root of 1373173 is about 1171.8246455848. The cubic root of 1373173 is about 111.1497316486.

The spelling of 1373173 in words is "one million, three hundred seventy-three thousand, one hundred seventy-three".