194283197 has 2 divisors, whose sum is σ = 194283198. Its totient is φ = 194283196.

The previous prime is 194283137. The next prime is 194283211. The reversal of 194283197 is 791382491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163302841 + 30980356 = 12779^2 + 5566^2 .

It is a cyclic number.

It is not a de Polignac number, because 194283197 - 2¹² = 194279101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194283127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97141598 + 97141599.

It is an arithmetic number, because the mean of its divisors is an integer number (97141599).

Almost surely, 2^194283197 is an apocalyptic number.

It is an amenable number.

194283197 is a deficient number, since it is larger than the sum of its proper divisors (1).

194283197 is an equidigital number, since it uses as much as digits as its factorization.

194283197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 194283197 is about 13938.5507496296. The cubic root of 194283197 is about 579.1775868847.

The spelling of 194283197 in words is "one hundred ninety-four million, two hundred eighty-three thousand, one hundred ninety-seven".