981013 has 8 divisors (see below), whose sum is σ = 1082016. Its totient is φ = 882000.

The previous prime is 981011. The next prime is 981017. The reversal of 981013 is 310189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981013 - 2¹ = 981011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 1552.

It is an arithmetic number, because the mean of its divisors is an integer number (135252).

2⁹⁸¹⁰¹³ is an apocalyptic number.

It is an amenable number.

981013 is a deficient number, since it is larger than the sum of its proper divisors (101003).

981013 is a wasteful number, since it uses less digits than its factorization.

981013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 981013 is about 990.4610037755. The cubic root of 981013 is about 99.3630515808.

It can be divided in two parts, 98 and 1013, that added together give a palindrome (1111).

The spelling of 981013 in words is "nine hundred eighty-one thousand, thirteen".