199143395 has 8 divisors (see below), whose sum is σ = 260696880. Its totient is φ = 144831520.

The previous prime is 199143391. The next prime is 199143397. The reversal of 199143395 is 593341991.

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

It is not a de Polignac number, because 199143395 - 2² = 199143391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199143391) 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, 1810340 + ... + 1810449.

It is an arithmetic number, because the mean of its divisors is an integer number (32587110).

Almost surely, 2^199143395 is an apocalyptic number.

199143395 is a deficient number, since it is larger than the sum of its proper divisors (61553485).

199143395 is a wasteful number, since it uses less digits than its factorization.

199143395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620805.

The product of its digits is 131220, while the sum is 44.

The square root of 199143395 is about 14111.8175654308. The cubic root of 199143395 is about 583.9674434140.

The spelling of 199143395 in words is "one hundred ninety-nine million, one hundred forty-three thousand, three hundred ninety-five".