194191067 has 12 divisors (see below), whose sum is σ = 226481976. Its totient is φ = 166017600.

The previous prime is 194191057. The next prime is 194191069. The reversal of 194191067 is 760191491.

It is a de Polignac number, because none of the positive numbers 2^k-194191067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194191067.

It is not an unprimeable number, because it can be changed into a prime (194191069) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14708 + ... + 24590.

It is an arithmetic number, because the mean of its divisors is an integer number (18873498).

Almost surely, 2^194191067 is an apocalyptic number.

194191067 is a deficient number, since it is larger than the sum of its proper divisors (32290909).

194191067 is an equidigital number, since it uses as much as digits as its factorization.

194191067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298 (or 10291 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 194191067 is about 13935.2454947877. The cubic root of 194191067 is about 579.0860228370.

The spelling of 194191067 in words is "one hundred ninety-four million, one hundred ninety-one thousand, sixty-seven".