191334980 has 24 divisors (see below), whose sum is σ = 403265688. Its totient is φ = 76255488.

The previous prime is 191334977. The next prime is 191335009. The reversal of 191334980 is 89433191.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 191047684 = 536^2 + 13822^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11729 + ... + 22808.

It is an arithmetic number, because the mean of its divisors is an integer number (16802737).

Almost surely, 2^191334980 is an apocalyptic number.

191334980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191334980 is an abundant number, since it is smaller than the sum of its proper divisors (211930708).

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

191334980 is a wasteful number, since it uses less digits than its factorization.

191334980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34823 (or 34821 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 191334980 is about 13832.3888030954. The cubic root of 191334980 is about 576.2329987471.

The spelling of 191334980 in words is "one hundred ninety-one million, three hundred thirty-four thousand, nine hundred eighty".