194969 has 4 divisors (see below), whose sum is σ = 196020. Its totient is φ = 193920.

The previous prime is 194963. The next prime is 194977. The reversal of 194969 is 969491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 969491 = 887 ⋅1093.

It can be written as a sum of positive squares in 2 ways, for example, as 160000 + 34969 = 400^2 + 187^2 .

It is a cyclic number.

It is not a de Polignac number, because 194969 - 2⁸ = 194713 is a prime.

It is a super-2 number, since 2×194969² = 76025821922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 645.

It is an arithmetic number, because the mean of its divisors is an integer number (49005).

2¹⁹⁴⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

194969 is a deficient number, since it is larger than the sum of its proper divisors (1051).

194969 is an equidigital number, since it uses as much as digits as its factorization.

194969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its digits is 17496, while the sum is 38.

The square root of 194969 is about 441.5529413332. The cubic root of 194969 is about 57.9858268976.

The spelling of 194969 in words is "one hundred ninety-four thousand, nine hundred sixty-nine".