191728150 has 24 divisors (see below), whose sum is σ = 357782904. Its totient is φ = 76440000.

The previous prime is 191728129. The next prime is 191728151. The reversal of 191728150 is 51827191.

It is a happy number.

191728150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191728151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9525 + ... + 21775.

It is an arithmetic number, because the mean of its divisors is an integer number (14907621).

Almost surely, 2^191728150 is an apocalyptic number.

191728150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191728150 is a deficient number, since it is larger than the sum of its proper divisors (166054754).

191728150 is a wasteful number, since it uses less digits than its factorization.

191728150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576 (or 12571 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 191728150 is about 13846.5934438764. The cubic root of 191728150 is about 576.6274248340.

The spelling of 191728150 in words is "one hundred ninety-one million, seven hundred twenty-eight thousand, one hundred fifty".