194742164 has 6 divisors (see below), whose sum is σ = 340798794. Its totient is φ = 97371080.

The previous prime is 194742161. The next prime is 194742167. The reversal of 194742164 is 461247491.

194742164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (194742161) and next prime (194742167).

It can be written as a sum of positive squares in only one way, i.e., 167909764 + 26832400 = 12958^2 + 5180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194742161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24342767 + ... + 24342774.

It is an arithmetic number, because the mean of its divisors is an integer number (56799799).

Almost surely, 2^194742164 is an apocalyptic number.

It is an amenable number.

194742164 is a deficient number, since it is larger than the sum of its proper divisors (146056630).

194742164 is a wasteful number, since it uses less digits than its factorization.

194742164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48685545 (or 48685543 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 194742164 is about 13955.0049802929. The cubic root of 194742164 is about 579.6333036842.

The spelling of 194742164 in words is "one hundred ninety-four million, seven hundred forty-two thousand, one hundred sixty-four".