981325 has 12 divisors (see below), whose sum is σ = 1288980. Its totient is φ = 738560.

The previous prime is 981319. The next prime is 981373. The reversal of 981325 is 523189.

It can be written as a sum of positive squares in 6 ways, for example, as 34596 + 946729 = 186^2 + 973^2 .

It is not a de Polignac number, because 981325 - 2¹⁵ = 948557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 981293 and 981302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (107415).

2⁹⁸¹³²⁵ is an apocalyptic number.

It is an amenable number.

981325 is a deficient number, since it is larger than the sum of its proper divisors (307655).

981325 is a wasteful number, since it uses less digits than its factorization.

981325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336 (or 2331 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 981325 is about 990.6184936695. The cubic root of 981325 is about 99.3735842262.

The spelling of 981325 in words is "nine hundred eighty-one thousand, three hundred twenty-five".