189697201 has 4 divisors (see below), whose sum is σ = 194324004. Its totient is φ = 185070400.

The previous prime is 189697171. The next prime is 189697241. The reversal of 189697201 is 102796981.

189697201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102796981 = 7 ⋅14685283.

It can be written as a sum of positive squares in 2 ways, for example, as 61214976 + 128482225 = 7824^2 + 11335^2 .

It is a cyclic number.

It is not a de Polignac number, because 189697201 - 2¹⁹ = 189172913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189697241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313340 + ... + 2313421.

It is an arithmetic number, because the mean of its divisors is an integer number (48581001).

Almost surely, 2^189697201 is an apocalyptic number.

189697201 is the 6160-th centered decagonal number.

It is an amenable number.

189697201 is a deficient number, since it is larger than the sum of its proper divisors (4626803).

189697201 is an equidigital number, since it uses as much as digits as its factorization.

189697201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626802.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 189697201 is about 13773.0606983343. The cubic root of 189697201 is about 574.5841489745.

The spelling of 189697201 in words is "one hundred eighty-nine million, six hundred ninety-seven thousand, two hundred one".