191384112 has 40 divisors (see below), whose sum is σ = 520432960. Its totient is φ = 60436800.

The previous prime is 191384077. The next prime is 191384119. The reversal of 191384112 is 211483191.

It is a self number, because there is not a number n which added to its sum of digits gives 191384112.

It is not an unprimeable number, because it can be changed into a prime (191384119) 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, 104014 + ... + 105837.

It is an arithmetic number, because the mean of its divisors is an integer number (13010824).

Almost surely, 2^191384112 is an apocalyptic number.

191384112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191384112 is an abundant number, since it is smaller than the sum of its proper divisors (329048848).

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

191384112 is a wasteful number, since it uses less digits than its factorization.

191384112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209881 (or 209875 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 191384112 is about 13834.1646657830. The cubic root of 191384112 is about 576.2823172368.

The spelling of 191384112 in words is "one hundred ninety-one million, three hundred eighty-four thousand, one hundred twelve".