199288207 has 4 divisors (see below), whose sum is σ = 209777080. Its totient is φ = 188799336.

The previous prime is 199288171. The next prime is 199288223. The reversal of 199288207 is 702882991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199288207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199288237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5244408 + ... + 5244445.

It is an arithmetic number, because the mean of its divisors is an integer number (52444270).

Almost surely, 2^199288207 is an apocalyptic number.

199288207 is a deficient number, since it is larger than the sum of its proper divisors (10488873).

199288207 is a wasteful number, since it uses less digits than its factorization.

199288207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488872.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 199288207 is about 14116.9475099966. The cubic root of 199288207 is about 584.1089578635.

The spelling of 199288207 in words is "one hundred ninety-nine million, two hundred eighty-eight thousand, two hundred seven".