194499233 has 2 divisors, whose sum is σ = 194499234. Its totient is φ = 194499232.

The previous prime is 194499211. The next prime is 194499289. The reversal of 194499233 is 332994491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171295744 + 23203489 = 13088^2 + 4817^2 .

It is an emirp because it is prime and its reverse (332994491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194499233 - 2¹² = 194495137 is a prime.

It is not a weakly prime, because it can be changed into another prime (194409233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97249616 + 97249617.

It is an arithmetic number, because the mean of its divisors is an integer number (97249617).

Almost surely, 2^194499233 is an apocalyptic number.

It is an amenable number.

194499233 is a deficient number, since it is larger than the sum of its proper divisors (1).

194499233 is an equidigital number, since it uses as much as digits as its factorization.

194499233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 194499233 is about 13946.2981826720. The cubic root of 194499233 is about 579.3921823176.

It can be divided in two parts, 19449 and 9233, that added together give a palindrome (28682).

The spelling of 194499233 in words is "one hundred ninety-four million, four hundred ninety-nine thousand, two hundred thirty-three".