1601185 has 4 divisors (see below), whose sum is σ = 1921428. Its totient is φ = 1280944.

The previous prime is 1601161. The next prime is 1601203. The reversal of 1601185 is 5811061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 839056 + 762129 = 916^2 + 873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601185 - 2¹¹ = 1599137 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160114 + ... + 160123.

It is an arithmetic number, because the mean of its divisors is an integer number (480357).

2^1601185 is an apocalyptic number.

It is an amenable number.

1601185 is a deficient number, since it is larger than the sum of its proper divisors (320243).

1601185 is an equidigital number, since it uses as much as digits as its factorization.

1601185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320242.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1601185 is about 1265.3793897484. The cubic root of 1601185 is about 116.9895770782.

The spelling of 1601185 in words is "one million, six hundred one thousand, one hundred eighty-five".