981045 has 48 divisors (see below), whose sum is σ = 1932480. Its totient is φ = 471744.

The previous prime is 981037. The next prime is 981049. The reversal of 981045 is 540189.

It is not a de Polignac number, because 981045 - 2³ = 981037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981045.

It is not an unprimeable number, because it can be changed into a prime (981049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22794 + ... + 22836.

It is an arithmetic number, because the mean of its divisors is an integer number (40260).

2⁹⁸¹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

981045 is a deficient number, since it is larger than the sum of its proper divisors (951435).

981045 is a wasteful number, since it uses less digits than its factorization.

981045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 64 counting only the distinct ones).

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

The square root of 981045 is about 990.4771577376. The cubic root of 981045 is about 99.3641319549.

The spelling of 981045 in words is "nine hundred eighty-one thousand, forty-five".