196171841 has 2 divisors, whose sum is σ = 196171842. Its totient is φ = 196171840.

The previous prime is 196171837. The next prime is 196171847. The reversal of 196171841 is 148171691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 2961841 = 13900^2 + 1721^2 .

It is an emirp because it is prime and its reverse (148171691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196171841 - 2² = 196171837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196171795 and 196171804.

It is not a weakly prime, because it can be changed into another prime (196171847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98085920 + 98085921.

It is an arithmetic number, because the mean of its divisors is an integer number (98085921).

Almost surely, 2^196171841 is an apocalyptic number.

It is an amenable number.

196171841 is a deficient number, since it is larger than the sum of its proper divisors (1).

196171841 is an equidigital number, since it uses as much as digits as its factorization.

196171841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 38.

The square root of 196171841 is about 14006.1358339836. The cubic root of 196171841 is about 581.0482835561.

The spelling of 196171841 in words is "one hundred ninety-six million, one hundred seventy-one thousand, eight hundred forty-one".