194422313 has 2 divisors, whose sum is σ = 194422314. Its totient is φ = 194422312.

The previous prime is 194422303. The next prime is 194422339. The reversal of 194422313 is 313224491.

194422313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125731369 + 68690944 = 11213^2 + 8288^2 .

It is an emirp because it is prime and its reverse (313224491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194422313 - 2¹⁰ = 194421289 is a prime.

It is not a weakly prime, because it can be changed into another prime (194422303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97211156 + 97211157.

It is an arithmetic number, because the mean of its divisors is an integer number (97211157).

Almost surely, 2^194422313 is an apocalyptic number.

It is an amenable number.

194422313 is a deficient number, since it is larger than the sum of its proper divisors (1).

194422313 is an equidigital number, since it uses as much as digits as its factorization.

194422313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 194422313 is about 13943.5401889190. The cubic root of 194422313 is about 579.3157934593.

The spelling of 194422313 in words is "one hundred ninety-four million, four hundred twenty-two thousand, three hundred thirteen".