194083231 has 4 divisors (see below), whose sum is σ = 194805000. Its totient is φ = 193361464.

The previous prime is 194083213. The next prime is 194083249. The reversal of 194083231 is 132380491.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (194083213) and next prime (194083249).

It is a cyclic number.

It is not a de Polignac number, because 194083231 - 2⁵ = 194083199 is a prime.

It is a super-2 number, since 2×194083231² = 75336601110798722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194083193 and 194083202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194083291) 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 3 ways as a sum of consecutive naturals, for example, 360481 + ... + 361018.

It is an arithmetic number, because the mean of its divisors is an integer number (48701250).

Almost surely, 2^194083231 is an apocalyptic number.

194083231 is a deficient number, since it is larger than the sum of its proper divisors (721769).

194083231 is an equidigital number, since it uses as much as digits as its factorization.

194083231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721768.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 194083231 is about 13931.3757755650. The cubic root of 194083231 is about 578.9788124764.

The spelling of 194083231 in words is "one hundred ninety-four million, eighty-three thousand, two hundred thirty-one".