189010001 has 8 divisors (see below), whose sum is σ = 190368000. Its totient is φ = 187656480.

The previous prime is 189009991. The next prime is 189010039. The reversal of 189010001 is 100010981.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189010091) 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, 142421 + ... + 143741.

It is an arithmetic number, because the mean of its divisors is an integer number (23796000).

Almost surely, 2^189010001 is an apocalyptic number.

It is an amenable number.

189010001 is a deficient number, since it is larger than the sum of its proper divisors (1357999).

189010001 is a wasteful number, since it uses less digits than its factorization.

189010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 189010001 is about 13748.0908129093. The cubic root of 189010001 is about 573.8894769943.

Adding to 189010001 its reverse (100010981), we get a palindrome (289020982).

The spelling of 189010001 in words is "one hundred eighty-nine million, ten thousand, one".