199306137 has 8 divisors (see below), whose sum is σ = 266723200. Its totient is φ = 132379920.

The previous prime is 199306127. The next prime is 199306139. The reversal of 199306137 is 731603991.

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

It is not a de Polignac number, because 199306137 - 2⁶ = 199306073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199306095 and 199306104.

It is not an unprimeable number, because it can be changed into a prime (199306139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121762 + ... + 123387.

It is an arithmetic number, because the mean of its divisors is an integer number (33340400).

Almost surely, 2^199306137 is an apocalyptic number.

It is an amenable number.

199306137 is a deficient number, since it is larger than the sum of its proper divisors (67417063).

199306137 is a wasteful number, since it uses less digits than its factorization.

199306137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245423.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 199306137 is about 14117.5825480144. The cubic root of 199306137 is about 584.1264748049.

The spelling of 199306137 in words is "one hundred ninety-nine million, three hundred six thousand, one hundred thirty-seven".