194319812 has 6 divisors (see below), whose sum is σ = 340059678. Its totient is φ = 97159904.

The previous prime is 194319803. The next prime is 194319857. The reversal of 194319812 is 218913491.

It can be written as a sum of positive squares in only one way, i.e., 189723076 + 4596736 = 13774^2 + 2144^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 24289973 + ... + 24289980.

It is an arithmetic number, because the mean of its divisors is an integer number (56676613).

Almost surely, 2^194319812 is an apocalyptic number.

It is an amenable number.

194319812 is a deficient number, since it is larger than the sum of its proper divisors (145739866).

194319812 is a wasteful number, since it uses less digits than its factorization.

194319812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48579957 (or 48579955 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 194319812 is about 13939.8641313321. The cubic root of 194319812 is about 579.2139689215.

The spelling of 194319812 in words is "one hundred ninety-four million, three hundred nineteen thousand, eight hundred twelve".