6181000 has 64 divisors (see below), whose sum is σ = 16548480. Its totient is φ = 2116800.

The previous prime is 6180991. The next prime is 6181001. The reversal of 6181000 is 1816.

It is a super-2 number, since 2×6181000² = 76409522000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6181001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6559 + ... + 7441.

It is an arithmetic number, because the mean of its divisors is an integer number (258570).

Almost surely, 2^6181000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6181000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8274240).

6181000 is an abundant number, since it is smaller than the sum of its proper divisors (10367480).

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

6181000 is a wasteful number, since it uses less digits than its factorization.

6181000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 6181000 is about 2486.1617002922. The cubic root of 6181000 is about 183.5212031915.

Adding to 6181000 its reverse (1816), we get a palindrome (6182816).

The spelling of 6181000 in words is "six million, one hundred eighty-one thousand".