194084237 has 2 divisors, whose sum is σ = 194084238. Its totient is φ = 194084236.

The previous prime is 194084213. The next prime is 194084243. The reversal of 194084237 is 732480491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173554276 + 20529961 = 13174^2 + 4531^2 .

It is an emirp because it is prime and its reverse (732480491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194084237 - 2¹⁰ = 194083213 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194084237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194084207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97042118 + 97042119.

It is an arithmetic number, because the mean of its divisors is an integer number (97042119).

Almost surely, 2^194084237 is an apocalyptic number.

It is an amenable number.

194084237 is a deficient number, since it is larger than the sum of its proper divisors (1).

194084237 is an equidigital number, since it uses as much as digits as its factorization.

194084237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 194084237 is about 13931.4118810693. The cubic root of 194084237 is about 578.9798128234.

The spelling of 194084237 in words is "one hundred ninety-four million, eighty-four thousand, two hundred thirty-seven".