196471745 has 4 divisors (see below), whose sum is σ = 235766100. Its totient is φ = 157177392.

The previous prime is 196471741. The next prime is 196471753. The reversal of 196471745 is 547174691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547174691 = 7 ⋅78167813.

It can be written as a sum of positive squares in 2 ways, for example, as 126180289 + 70291456 = 11233^2 + 8384^2 .

It is a cyclic number.

It is not a de Polignac number, because 196471745 - 2² = 196471741 is a prime.

It is a super-2 number, since 2×196471745² = 77202293166690050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 196471696 and 196471705.

It is not an unprimeable number, because it can be changed into a prime (196471741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19647170 + ... + 19647179.

It is an arithmetic number, because the mean of its divisors is an integer number (58941525).

Almost surely, 2^196471745 is an apocalyptic number.

It is an amenable number.

196471745 is a deficient number, since it is larger than the sum of its proper divisors (39294355).

196471745 is an equidigital number, since it uses as much as digits as its factorization.

196471745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39294354.

The product of its digits is 211680, while the sum is 44.

The square root of 196471745 is about 14016.8379101708. The cubic root of 196471745 is about 581.3442315333.

The spelling of 196471745 in words is "one hundred ninety-six million, four hundred seventy-one thousand, seven hundred forty-five".