199812361 has 8 divisors (see below), whose sum is σ = 230000960. Its totient is φ = 170034768.

The previous prime is 199812359. The next prime is 199812383. The reversal of 199812361 is 163218991.

199812361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199812361 - 2¹ = 199812359 is a prime.

It is the 14136-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (199812161) by changing a digit.

It is a nontrivial repunit in base 14135.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101706 + ... + 103651.

It is an arithmetic number, because the mean of its divisors is an integer number (28750120).

Almost surely, 2^199812361 is an apocalyptic number.

It is an amenable number.

199812361 is a deficient number, since it is larger than the sum of its proper divisors (30188599).

199812361 is a wasteful number, since it uses less digits than its factorization.

199812361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205503.

The product of its digits is 23328, while the sum is 40.

The square root of 199812361 is about 14135.5000265290. The cubic root of 199812361 is about 584.6206038302.

The spelling of 199812361 in words is "one hundred ninety-nine million, eight hundred twelve thousand, three hundred sixty-one".