1831140108 has 192 divisors, whose sum is σ = 5818982400. Its totient is φ = 492127488.

The previous prime is 1831140071. The next prime is 1831140109. The reversal of 1831140108 is 8010411381.

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

It is not an unprimeable number, because it can be changed into a prime (1831140109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1040133 + ... + 1041891.

It is an arithmetic number, because the mean of its divisors is an integer number (30307200).

Almost surely, 2^1831140108 is an apocalyptic number.

1831140108 is a gapful number since it is divisible by the number (18) 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 1831140108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2909491200).

1831140108 is an abundant number, since it is smaller than the sum of its proper divisors (3987842292).

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

1831140108 is a wasteful number, since it uses less digits than its factorization.

1831140108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 1831140108 is about 42791.8229104580. The cubic root of 1831140108 is about 1223.4151617800.

Adding to 1831140108 its reverse (8010411381), we get a palindrome (9841551489).

The spelling of 1831140108 in words is "one billion, eight hundred thirty-one million, one hundred forty thousand, one hundred eight".