189425 has 6 divisors (see below), whose sum is σ = 234918. Its totient is φ = 151520.

The previous prime is 189421. The next prime is 189433. The reversal of 189425 is 524981.

It can be written as a sum of positive squares in 3 ways, for example, as 1936 + 187489 = 44^2 + 433^2 .

It is not a de Polignac number, because 189425 - 2² = 189421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3764 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (39153).

2¹⁸⁹⁴²⁵ is an apocalyptic number.

It is an amenable number.

189425 is a deficient number, since it is larger than the sum of its proper divisors (45493).

189425 is an equidigital number, since it uses as much as digits as its factorization.

189425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587 (or 7582 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 189425 is about 435.2298243457. The cubic root of 189425 is about 57.4309189289.

The spelling of 189425 in words is "one hundred eighty-nine thousand, four hundred twenty-five".