8181360 has 120 divisors (see below), whose sum is σ = 30002544. Its totient is φ = 1981440.

The previous prime is 8181359. The next prime is 8181361. The reversal of 8181360 is 631818.

It is an interprime number because it is at equal distance from previous prime (8181359) and next prime (8181361).

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8181361) 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 23 ways as a sum of consecutive naturals, for example, 7404 + ... + 8436.

Almost surely, 2^8181360 is an apocalyptic number.

8181360 is a gapful number since it is divisible by the number (80) 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 8181360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15001272).

8181360 is an abundant number, since it is smaller than the sum of its proper divisors (21821184).

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

8181360 is a wasteful number, since it uses less digits than its factorization.

8181360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 8181360 is about 2860.3076757580. The cubic root of 8181360 is about 201.5000543894.

The spelling of 8181360 in words is "eight million, one hundred eighty-one thousand, three hundred sixty".