191216382 has 16 divisors (see below), whose sum is σ = 437066112. Its totient is φ = 54633240.

The previous prime is 191216371. The next prime is 191216393. The reversal of 191216382 is 283612191.

191216382 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (191216371) and next prime (191216393).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2276344 + ... + 2276427.

It is an arithmetic number, because the mean of its divisors is an integer number (27316632).

Almost surely, 2^191216382 is an apocalyptic number.

191216382 is an abundant number, since it is smaller than the sum of its proper divisors (245849730).

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

191216382 is a wasteful number, since it uses less digits than its factorization.

191216382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552783.

The product of its digits is 5184, while the sum is 33.

The square root of 191216382 is about 13828.1011711659. The cubic root of 191216382 is about 576.1139157892.

The spelling of 191216382 in words is "one hundred ninety-one million, two hundred sixteen thousand, three hundred eighty-two".