196123212 has 18 divisors (see below), whose sum is σ = 495755988. Its totient is φ = 65374392.

The previous prime is 196123211. The next prime is 196123217. The reversal of 196123212 is 212321691.

196123212 is a `hidden beast` number, since 1 + 9 + 612 + 32 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (196123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2723898 + ... + 2723969.

Almost surely, 2^196123212 is an apocalyptic number.

196123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

196123212 is an abundant number, since it is smaller than the sum of its proper divisors (299632776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196123212 is a wasteful number, since it uses less digits than its factorization.

196123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447877 (or 5447872 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 196123212 is about 14004.3997372254. The cubic root of 196123212 is about 581.0002676058. Note that the first 3 decimals are identical.

The spelling of 196123212 in words is "one hundred ninety-six million, one hundred twenty-three thousand, two hundred twelve".