191206912 has 80 divisors (see below), whose sum is σ = 429660000. Its totient is φ = 84344832.

The previous prime is 191206901. The next prime is 191206919. The reversal of 191206912 is 219602191.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191206919) 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, 152464 + ... + 153712.

It is an arithmetic number, because the mean of its divisors is an integer number (5370750).

Almost surely, 2^191206912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191206912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214830000).

191206912 is an abundant number, since it is smaller than the sum of its proper divisors (238453088).

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

191206912 is a wasteful number, since it uses less digits than its factorization.

191206912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 191206912 is about 13827.7587482571. The cubic root of 191206912 is about 576.1044049429.

The spelling of 191206912 in words is "one hundred ninety-one million, two hundred six thousand, nine hundred twelve".