189710225 has 24 divisors (see below), whose sum is σ = 252626688. Its totient is φ = 140806400.

The previous prime is 189710221. The next prime is 189710237. The reversal of 189710225 is 522017981.

It is not a de Polignac number, because 189710225 - 2² = 189710221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189710221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27032 + ... + 33318.

It is an arithmetic number, because the mean of its divisors is an integer number (10526112).

Almost surely, 2^189710225 is an apocalyptic number.

It is an amenable number.

189710225 is a deficient number, since it is larger than the sum of its proper divisors (62916463).

189710225 is a wasteful number, since it uses less digits than its factorization.

189710225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385 (or 6380 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 189710225 is about 13773.5334972548. The cubic root of 189710225 is about 574.5972983738.

The spelling of 189710225 in words is "one hundred eighty-nine million, seven hundred ten thousand, two hundred twenty-five".