981201 has 16 divisors (see below), whose sum is σ = 1426880. Its totient is φ = 596160.

The previous prime is 981199. The next prime is 981209. The reversal of 981201 is 102189.

It is not a de Polignac number, because 981201 - 2¹ = 981199 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 981201.

It is not an unprimeable number, because it can be changed into a prime (981209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5331 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (89180).

2⁹⁸¹²⁰¹ is an apocalyptic number.

It is an amenable number.

981201 is a deficient number, since it is larger than the sum of its proper divisors (445679).

981201 is a wasteful number, since it uses less digits than its factorization.

981201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 981201 is about 990.5559045304. Note that the first 3 decimals coincide. The cubic root of 981201 is about 99.3693984422.

The spelling of 981201 in words is "nine hundred eighty-one thousand, two hundred one".