194131 has 4 divisors (see below), whose sum is σ = 221872. Its totient is φ = 166392.

The previous prime is 194119. The next prime is 194141. The reversal of 194131 is 131491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131491 = 23 ⋅5717.

It is a cyclic number.

It is not a de Polignac number, because 194131 - 2⁷ = 194003 is a prime.

It is a super-2 number, since 2×194131² = 75373690322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194099 and 194108.

It is not an unprimeable number, because it can be changed into a prime (194101) 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, 13860 + ... + 13873.

It is an arithmetic number, because the mean of its divisors is an integer number (55468).

2¹⁹⁴¹³¹ is an apocalyptic number.

194131 is a deficient number, since it is larger than the sum of its proper divisors (27741).

194131 is an equidigital number, since it uses as much as digits as its factorization.

194131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27740.

The product of its digits is 108, while the sum is 19.

The square root of 194131 is about 440.6029959045. The cubic root of 194131 is about 57.9026309230.

It can be divided in two parts, 194 and 131, that added together give a triangular number (325 = T₂₅).

The spelling of 194131 in words is "one hundred ninety-four thousand, one hundred thirty-one".