980165 has 4 divisors (see below), whose sum is σ = 1176204. Its totient is φ = 784128.

The previous prime is 980159. The next prime is 980173. The reversal of 980165 is 561089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561089 = 19 ⋅29531.

It can be written as a sum of positive squares in 2 ways, for example, as 588289 + 391876 = 767^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 980165 - 2⁴ = 980149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 98012 + ... + 98021.

It is an arithmetic number, because the mean of its divisors is an integer number (294051).

2⁹⁸⁰¹⁶⁵ is an apocalyptic number.

It is an amenable number.

980165 is a deficient number, since it is larger than the sum of its proper divisors (196039).

980165 is a wasteful number, since it uses less digits than its factorization.

980165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196038.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 980165 is about 990.0328277386. The cubic root of 980165 is about 99.3344131028.

The spelling of 980165 in words is "nine hundred eighty thousand, one hundred sixty-five".