101819112 has 32 divisors (see below), whose sum is σ = 258137280. Its totient is φ = 33461120.

The previous prime is 101819111. The next prime is 101819117. The reversal of 101819112 is 211918101.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (101819111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28173 + ... + 31580.

It is an arithmetic number, because the mean of its divisors is an integer number (8066790).

Almost surely, 2^101819112 is an apocalyptic number.

101819112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101819112 is an abundant number, since it is smaller than the sum of its proper divisors (156318168).

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

101819112 is a wasteful number, since it uses less digits than its factorization.

101819112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59833 (or 59829 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 101819112 is about 10090.5456740456. The cubic root of 101819112 is about 466.9565106453.

The spelling of 101819112 in words is "one hundred one million, eight hundred nineteen thousand, one hundred twelve".