194281 has 4 divisors (see below), whose sum is σ = 202752. Its totient is φ = 185812.

The previous prime is 194269. The next prime is 194309. The reversal of 194281 is 182491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182491 = 41 ⋅4451.

It is a cyclic number.

It is not a de Polignac number, because 194281 - 2¹¹ = 192233 is a prime.

It is a super-2 number, since 2×194281² = 75490213922, which contains 22 as substring.

It is a Duffinian number.

194281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (194581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4201 + ... + 4246.

It is an arithmetic number, because the mean of its divisors is an integer number (50688).

2¹⁹⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

194281 is a deficient number, since it is larger than the sum of its proper divisors (8471).

194281 is an equidigital number, since it uses as much as digits as its factorization.

194281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470.

The product of its digits is 576, while the sum is 25.

The square root of 194281 is about 440.7731843023. The cubic root of 194281 is about 57.9175403718.

The spelling of 194281 in words is "one hundred ninety-four thousand, two hundred eighty-one".