194149 has 2 divisors, whose sum is σ = 194150. Its totient is φ = 194148.
The previous prime is 194141. The next prime is 194167. The reversal of 194149 is 941491.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 101124 + 93025 = 318^2 + 305^2 .
It is an emirp because it is prime and its reverse (941491) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 194149 - 23 = 194141 is a prime.
It is a Chen prime.
It is a nialpdrome in base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (194141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97074 + 97075.
It is an arithmetic number, because the mean of its divisors is an integer number (97075).
2194149 is an apocalyptic number.
It is an amenable number.
194149 is a deficient number, since it is larger than the sum of its proper divisors (1).
194149 is an equidigital number, since it uses as much as digits as its factorization.
194149 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1296, while the sum is 28.
The square root of 194149 is about 440.6234219830. The cubic root of 194149 is about 57.9044204623.
It can be divided in two parts, 194 and 149, that added together give a palindrome (343).
The spelling of 194149 in words is "one hundred ninety-four thousand, one hundred forty-nine".
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