199389001 has 16 divisors (see below), whose sum is σ = 238362624. Its totient is φ = 163074384.

The previous prime is 199388989. The next prime is 199389011. The reversal of 199389001 is 100983991.

It is a cyclic number.

It is not a de Polignac number, because 199389001 - 2¹¹ = 199386953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199389011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77136 + ... + 79678.

It is an arithmetic number, because the mean of its divisors is an integer number (14897664).

Almost surely, 2^199389001 is an apocalyptic number.

It is an amenable number.

199389001 is a deficient number, since it is larger than the sum of its proper divisors (38973623).

199389001 is a wasteful number, since it uses less digits than its factorization.

199389001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 199389001 is about 14120.5170231121. The cubic root of 199389001 is about 584.2074161989.

The spelling of 199389001 in words is "one hundred ninety-nine million, three hundred eighty-nine thousand, one".