1445173 has 2 divisors, whose sum is σ = 1445174. Its totient is φ = 1445172.

The previous prime is 1445161. The next prime is 1445177. The reversal of 1445173 is 3715441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 400689 = 1022^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445173 - 2⁹ = 1444661 is a prime.

It is an Ulam number.

1445173 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722586 + 722587.

It is an arithmetic number, because the mean of its divisors is an integer number (722587).

2^1445173 is an apocalyptic number.

It is an amenable number.

1445173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445173 is an equidigital number, since it uses as much as digits as its factorization.

1445173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 1445173 is about 1202.1534843771. The cubic root of 1445173 is about 113.0593835158.

The spelling of 1445173 in words is "one million, four hundred forty-five thousand, one hundred seventy-three".