189451201 has 4 divisors (see below), whose sum is σ = 194072004. Its totient is φ = 184830400.

The previous prime is 189451187. The next prime is 189451231. The reversal of 189451201 is 102154981.

It is a happy number.

189451201 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.

It can be written as a sum of positive squares in 2 ways, for example, as 102010000 + 87441201 = 10100^2 + 9351^2 .

It is a cyclic number.

It is not a de Polignac number, because 189451201 - 2²³ = 181062593 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189451231) 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, 2310340 + ... + 2310421.

It is an arithmetic number, because the mean of its divisors is an integer number (48518001).

Almost surely, 2^189451201 is an apocalyptic number.

It is an amenable number.

189451201 is a deficient number, since it is larger than the sum of its proper divisors (4620803).

189451201 is an equidigital number, since it uses as much as digits as its factorization.

189451201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620802.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 189451201 is about 13764.1273243166. The cubic root of 189451201 is about 574.3356672819.

The spelling of 189451201 in words is "one hundred eighty-nine million, four hundred fifty-one thousand, two hundred one".