6981120 has 160 divisors (see below), whose sum is σ = 25043040. Its totient is φ = 1843200.

The previous prime is 6981103. The next prime is 6981133. The reversal of 6981120 is 211896.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69070 + ... + 69170.

It is an arithmetic number, because the mean of its divisors is an integer number (156519).

Almost surely, 2^6981120 is an apocalyptic number.

6981120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6981120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12521520).

6981120 is an abundant number, since it is smaller than the sum of its proper divisors (18061920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6981120 is a wasteful number, since it uses less digits than its factorization.

6981120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 6981120 is about 2642.1809173484. The cubic root of 6981120 is about 191.1209818029.

The spelling of 6981120 in words is "six million, nine hundred eighty-one thousand, one hundred twenty".