981101 has 8 divisors (see below), whose sum is σ = 1084800. Its totient is φ = 879840.

The previous prime is 981091. The next prime is 981133. The reversal of 981101 is 101189.

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 981101 - 2⁶ = 981037 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 (981151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 305 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (135600).

2⁹⁸¹¹⁰¹ is an apocalyptic number.

It is an amenable number.

981101 is a deficient number, since it is larger than the sum of its proper divisors (103699).

981101 is a wasteful number, since it uses less digits than its factorization.

981101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 981101 is about 990.5054265374. The cubic root of 981101 is about 99.3660225531.

The spelling of 981101 in words is "nine hundred eighty-one thousand, one hundred one".