199213215 has 8 divisors (see below), whose sum is σ = 318741168. Its totient is φ = 106247040.

The previous prime is 199213211. The next prime is 199213253. The reversal of 199213215 is 512312991.

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

It is not a de Polignac number, because 199213215 - 2² = 199213211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199213211) 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, 6640426 + ... + 6640455.

It is an arithmetic number, because the mean of its divisors is an integer number (39842646).

Almost surely, 2^199213215 is an apocalyptic number.

199213215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199213215 is a deficient number, since it is larger than the sum of its proper divisors (119527953).

199213215 is a wasteful number, since it uses less digits than its factorization.

199213215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280889.

The product of its digits is 4860, while the sum is 33.

The square root of 199213215 is about 14114.2911617977. The cubic root of 199213215 is about 584.0356820867.

The spelling of 199213215 in words is "one hundred ninety-nine million, two hundred thirteen thousand, two hundred fifteen".