191394148 has 24 divisors (see below), whose sum is σ = 365740704. Its totient is φ = 86913600.

The previous prime is 191394127. The next prime is 191394157. The reversal of 191394148 is 841493191.

It is a self number, because there is not a number n which added to its sum of digits gives 191394148.

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, 82768 + ... + 85048.

It is an arithmetic number, because the mean of its divisors is an integer number (15239196).

Almost surely, 2^191394148 is an apocalyptic number.

It is an amenable number.

191394148 is a deficient number, since it is larger than the sum of its proper divisors (174346556).

191394148 is a wasteful number, since it uses less digits than its factorization.

191394148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203 (or 4201 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 191394148 is about 13834.5273862174. The cubic root of 191394148 is about 576.2923902921.

The spelling of 191394148 in words is "one hundred ninety-one million, three hundred ninety-four thousand, one hundred forty-eight".