191740148 has 12 divisors (see below), whose sum is σ = 338681952. Its totient is φ = 94973880.

The previous prime is 191740111. The next prime is 191740151. The reversal of 191740148 is 841047191.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223568 + ... + 224423.

It is an arithmetic number, because the mean of its divisors is an integer number (28223496).

Almost surely, 2^191740148 is an apocalyptic number.

It is an amenable number.

191740148 is a deficient number, since it is larger than the sum of its proper divisors (146941804).

191740148 is a wasteful number, since it uses less digits than its factorization.

191740148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448102 (or 448100 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 191740148 is about 13847.0266844547. The cubic root of 191740148 is about 576.6394526827.

The spelling of 191740148 in words is "one hundred ninety-one million, seven hundred forty thousand, one hundred forty-eight".