199270641 has 16 divisors (see below), whose sum is σ = 275307264. Its totient is φ = 128104704.

The previous prime is 199270637. The next prime is 199270679. The reversal of 199270641 is 146072991.

It is not a de Polignac number, because 199270641 - 2² = 199270637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199270641.

It is not an unprimeable number, because it can be changed into a prime (199270601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4600 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (17206704).

Almost surely, 2^199270641 is an apocalyptic number.

It is an amenable number.

199270641 is a deficient number, since it is larger than the sum of its proper divisors (76036623).

199270641 is a wasteful number, since it uses less digits than its factorization.

199270641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16040.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 199270641 is about 14116.3253362906. The cubic root of 199270641 is about 584.0917955176.

The spelling of 199270641 in words is "one hundred ninety-nine million, two hundred seventy thousand, six hundred forty-one".