199412 has 6 divisors (see below), whose sum is σ = 348978. Its totient is φ = 99704.

The previous prime is 199411. The next prime is 199417. The reversal of 199412 is 214991.

199412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 59536 = 374^2 + 244^2 .

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923 + ... + 24930.

It is an arithmetic number, because the mean of its divisors is an integer number (58163).

2¹⁹⁹⁴¹² is an apocalyptic number.

It is an amenable number.

199412 is a deficient number, since it is larger than the sum of its proper divisors (149566).

199412 is a wasteful number, since it uses less digits than its factorization.

199412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49857 (or 49855 counting only the distinct ones).

The product of its digits is 648, while the sum is 26.

The square root of 199412 is about 446.5557076110. Note that the first 3 decimals coincide. The cubic root of 199412 is about 58.4229877601.

The spelling of 199412 in words is "one hundred ninety-nine thousand, four hundred twelve".