196671951 has 24 divisors (see below), whose sum is σ = 326144000. Its totient is φ = 111872016.

The previous prime is 196671931. The next prime is 196671953. The reversal of 196671951 is 159176691.

It is not a de Polignac number, because 196671951 - 2⁶ = 196671887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196671897 and 196671906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196671953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7050 + ... + 21048.

Almost surely, 2^196671951 is an apocalyptic number.

196671951 is a deficient number, since it is larger than the sum of its proper divisors (129472049).

196671951 is a wasteful number, since it uses less digits than its factorization.

196671951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14235 (or 14232 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 196671951 is about 14023.9777167535. The cubic root of 196671951 is about 581.5416290301.

The spelling of 196671951 in words is "one hundred ninety-six million, six hundred seventy-one thousand, nine hundred fifty-one".