981025 has 6 divisors (see below), whose sum is σ = 1216502. Its totient is φ = 784800.

The previous prime is 981023. The next prime is 981037. The reversal of 981025 is 520189.

981025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 12769 + 968256 = 113^2 + 984^2 .

It is not a de Polignac number, because 981025 - 2¹ = 981023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 39241 = 981025 / (9 + 8 + 1 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19596 + ... + 19645.

2⁹⁸¹⁰²⁵ is an apocalyptic number.

It is an amenable number.

981025 is a deficient number, since it is larger than the sum of its proper divisors (235477).

981025 is a wasteful number, since it uses less digits than its factorization.

981025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39251 (or 39246 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 981025 is about 990.4670615422. The cubic root of 981025 is about 99.3634567239.

The spelling of 981025 in words is "nine hundred eighty-one thousand, twenty-five".