196182817 has 4 divisors (see below), whose sum is σ = 196480276. Its totient is φ = 195885360.

The previous prime is 196182751. The next prime is 196182829. The reversal of 196182817 is 718281691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718281691 = 107 ⋅6712913.

It can be written as a sum of positive squares in 2 ways, for example, as 126360081 + 69822736 = 11241^2 + 8356^2 .

It is a cyclic number.

It is not a de Polignac number, because 196182817 - 2²⁷ = 61965089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196183817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147738 + ... + 149059.

It is an arithmetic number, because the mean of its divisors is an integer number (49120069).

Almost surely, 2^196182817 is an apocalyptic number.

It is an amenable number.

196182817 is a deficient number, since it is larger than the sum of its proper divisors (297459).

196182817 is an equidigital number, since it uses as much as digits as its factorization.

196182817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297458.

The product of its digits is 48384, while the sum is 43.

The square root of 196182817 is about 14006.5276567749. The cubic root of 196182817 is about 581.0591200876.

The spelling of 196182817 in words is "one hundred ninety-six million, one hundred eighty-two thousand, eight hundred seventeen".