980145 has 24 divisors (see below), whose sum is σ = 1774656. Its totient is φ = 499488.

The previous prime is 980137. The next prime is 980149. The reversal of 980145 is 541089.

It is not a de Polignac number, because 980145 - 2³ = 980137 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980145.

It is not an unprimeable number, because it can be changed into a prime (980149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (73944).

2⁹⁸⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

980145 is a deficient number, since it is larger than the sum of its proper divisors (794511).

980145 is a wasteful number, since it uses less digits than its factorization.

980145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 980145 is about 990.0227270119. The cubic root of 980145 is about 99.3337374676. Note that the first 3 decimals are identical.

The spelling of 980145 in words is "nine hundred eighty thousand, one hundred forty-five".