189564125 has 8 divisors (see below), whose sum is σ = 236576184. Its totient is φ = 151651200.

The previous prime is 189564079. The next prime is 189564131. The reversal of 189564125 is 521465981.

189564125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46594276 + 142969849 = 6826^2 + 11957^2 .

It is not a de Polignac number, because 189564125 - 2¹² = 189560029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758132 + ... + 758381.

It is an arithmetic number, because the mean of its divisors is an integer number (29572023).

Almost surely, 2^189564125 is an apocalyptic number.

It is an amenable number.

189564125 is a deficient number, since it is larger than the sum of its proper divisors (47012059).

189564125 is an equidigital number, since it uses as much as digits as its factorization.

189564125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516528 (or 1516518 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 189564125 is about 13768.2288258149. The cubic root of 189564125 is about 574.4497571702.

The spelling of 189564125 in words is "one hundred eighty-nine million, five hundred sixty-four thousand, one hundred twenty-five".