199115371 has 12 divisors (see below), whose sum is σ = 249442032. Its totient is φ = 157541328.

The previous prime is 199115351. The next prime is 199115417. The reversal of 199115371 is 173511991.

It is a de Polignac number, because none of the positive numbers 2^k-199115371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199115371.

It is not an unprimeable number, because it can be changed into a prime (199115321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155655 + ... + 156928.

It is an arithmetic number, because the mean of its divisors is an integer number (20786836).

Almost surely, 2^199115371 is an apocalyptic number.

199115371 is a deficient number, since it is larger than the sum of its proper divisors (50326661).

199115371 is a wasteful number, since it uses less digits than its factorization.

199115371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312610 (or 312603 counting only the distinct ones).

The product of its digits is 8505, while the sum is 37.

The square root of 199115371 is about 14110.8246038281. The cubic root of 199115371 is about 583.9400496335.

The spelling of 199115371 in words is "one hundred ninety-nine million, one hundred fifteen thousand, three hundred seventy-one".