1605160 has 16 divisors (see below), whose sum is σ = 3611700. Its totient is φ = 642048.

The previous prime is 1605151. The next prime is 1605169. The reversal of 1605160 is 615061.

It is an interprime number because it is at equal distance from previous prime (1605151) and next prime (1605169).

It can be written as a sum of positive squares in 2 ways, for example, as 1340964 + 264196 = 1158^2 + 514^2 .

It is not an unprimeable number, because it can be changed into a prime (1605169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20025 + ... + 20104.

2^1605160 is an apocalyptic number.

1605160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605160 is an abundant number, since it is smaller than the sum of its proper divisors (2006540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1605160 is a wasteful number, since it uses less digits than its factorization.

1605160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40140 (or 40136 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1605160 is about 1266.9490913214. The cubic root of 1605160 is about 117.0863073702.

Subtracting from 1605160 its reverse (615061), we obtain a palindrome (990099).

The spelling of 1605160 in words is "one million, six hundred five thousand, one hundred sixty".