199137211 has 32 divisors (see below), whose sum is σ = 256729088. Its totient is φ = 150232320.

The previous prime is 199137209. The next prime is 199137227. The reversal of 199137211 is 112731991.

It is not a de Polignac number, because 199137211 - 2¹ = 199137209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199137011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205450 + ... + 206416.

It is an arithmetic number, because the mean of its divisors is an integer number (8022784).

Almost surely, 2^199137211 is an apocalyptic number.

199137211 is a deficient number, since it is larger than the sum of its proper divisors (57591877).

199137211 is a wasteful number, since it uses less digits than its factorization.

199137211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its digits is 3402, while the sum is 34.

The square root of 199137211 is about 14111.5984565888. The cubic root of 199137211 is about 583.9613987043.

The spelling of 199137211 in words is "one hundred ninety-nine million, one hundred thirty-seven thousand, two hundred eleven".