1601173 has 12 divisors (see below), whose sum is σ = 1910412. Its totient is φ = 1337280.

The previous prime is 1601161. The next prime is 1601203. The reversal of 1601173 is 3711061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 1238769 = 602^2 + 1113^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1601173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1601173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1611 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (159201).

2^1601173 is an apocalyptic number.

It is an amenable number.

1601173 is a deficient number, since it is larger than the sum of its proper divisors (309239).

1601173 is an equidigital number, since it uses as much as digits as its factorization.

1601173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1601173 is about 1265.3746480786. The cubic root of 1601173 is about 116.9892848200.

The spelling of 1601173 in words is "one million, six hundred one thousand, one hundred seventy-three".