189006901 has 8 divisors (see below), whose sum is σ = 200959704. Its totient is φ = 177146880.

The previous prime is 189006871. The next prime is 189006929. The reversal of 189006901 is 109600981.

It can be written as a sum of positive squares in 4 ways, for example, as 81884401 + 107122500 = 9049^2 + 10350^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 189006901 - 2¹⁷ = 188875829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189006971) 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, 18970 + ... + 27163.

It is an arithmetic number, because the mean of its divisors is an integer number (25119963).

Almost surely, 2^189006901 is an apocalyptic number.

It is an amenable number.

189006901 is a deficient number, since it is larger than the sum of its proper divisors (11952803).

189006901 is a wasteful number, since it uses less digits than its factorization.

189006901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46391.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 189006901 is about 13747.9780695199. The cubic root of 189006901 is about 573.8863394759.

The spelling of 189006901 in words is "one hundred eighty-nine million, six thousand, nine hundred one".