196279161 has 16 divisors (see below), whose sum is σ = 298416384. Its totient is φ = 113681664.

The previous prime is 196279159. The next prime is 196279183. The reversal of 196279161 is 161972691.

It is not a de Polignac number, because 196279161 - 2¹ = 196279159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (196279121) 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 15 ways as a sum of consecutive naturals, for example, 147361 + ... + 148686.

It is an arithmetic number, because the mean of its divisors is an integer number (18651024).

Almost surely, 2^196279161 is an apocalyptic number.

It is an amenable number.

196279161 is a deficient number, since it is larger than the sum of its proper divisors (102137223).

196279161 is a wasteful number, since it uses less digits than its factorization.

196279161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296080.

The product of its digits is 40824, while the sum is 42.

The square root of 196279161 is about 14009.9664881826. The cubic root of 196279161 is about 581.1542225354.

The spelling of 196279161 in words is "one hundred ninety-six million, two hundred seventy-nine thousand, one hundred sixty-one".