194921283 has 4 divisors (see below), whose sum is σ = 259895048. Its totient is φ = 129947520.

The previous prime is 194921281. The next prime is 194921317. The reversal of 194921283 is 382129491.

194921283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 194921283 - 2¹ = 194921281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194921281) 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, 32486878 + ... + 32486883.

It is an arithmetic number, because the mean of its divisors is an integer number (64973762).

Almost surely, 2^194921283 is an apocalyptic number.

194921283 is a deficient number, since it is larger than the sum of its proper divisors (64973765).

194921283 is an equidigital number, since it uses as much as digits as its factorization.

194921283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64973764.

The product of its digits is 31104, while the sum is 39.

The square root of 194921283 is about 13961.4212385416. The cubic root of 194921283 is about 579.8109599940.

It can be divided in two parts, 1949 and 21283, that added together give a palindrome (23232).

The spelling of 194921283 in words is "one hundred ninety-four million, nine hundred twenty-one thousand, two hundred eighty-three".