189000425 has 12 divisors (see below), whose sum is σ = 234932880. Its totient is φ = 150831120.

The previous prime is 189000401. The next prime is 189000433. The reversal of 189000425 is 524000981.

It is not a de Polignac number, because 189000425 - 2¹⁰ = 188999401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1454 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (19577740).

Almost surely, 2^189000425 is an apocalyptic number.

It is an amenable number.

189000425 is a deficient number, since it is larger than the sum of its proper divisors (45932455).

189000425 is a wasteful number, since it uses less digits than its factorization.

189000425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472 (or 18467 counting only the distinct ones).

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

The square root of 189000425 is about 13747.7425419594. The cubic root of 189000425 is about 573.8797849879.

The spelling of 189000425 in words is "one hundred eighty-nine million, four hundred twenty-five", and thus it is an aban number.