199045571 has 12 divisors (see below), whose sum is σ = 212566800. Its totient is φ = 186341760.

The previous prime is 199045559. The next prime is 199045597. The reversal of 199045571 is 175540991.

It is a de Polignac number, because none of the positive numbers 2^k-199045571 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199045271) 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, 55781 + ... + 59241.

It is an arithmetic number, because the mean of its divisors is an integer number (17713900).

Almost surely, 2^199045571 is an apocalyptic number.

199045571 is a deficient number, since it is larger than the sum of its proper divisors (13521229).

199045571 is a wasteful number, since it uses less digits than its factorization.

199045571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694 (or 3677 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 199045571 is about 14108.3511084747. The cubic root of 199045571 is about 583.8718081598.

The spelling of 199045571 in words is "one hundred ninety-nine million, forty-five thousand, five hundred seventy-one".