196431173 has 2 divisors, whose sum is σ = 196431174. Its totient is φ = 196431172.

The previous prime is 196431167. The next prime is 196431217. The reversal of 196431173 is 371134691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 77141089 = 10922^2 + 8783^2 .

It is an emirp because it is prime and its reverse (371134691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196431173 - 2¹⁴ = 196414789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196431133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98215586 + 98215587.

It is an arithmetic number, because the mean of its divisors is an integer number (98215587).

Almost surely, 2^196431173 is an apocalyptic number.

It is an amenable number.

196431173 is a deficient number, since it is larger than the sum of its proper divisors (1).

196431173 is an equidigital number, since it uses as much as digits as its factorization.

196431173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 196431173 is about 14015.3905760774. The cubic root of 196431173 is about 581.3042123405.

The spelling of 196431173 in words is "one hundred ninety-six million, four hundred thirty-one thousand, one hundred seventy-three".