189735425 has 24 divisors (see below), whose sum is σ = 270176160. Its totient is φ = 130723200.

The previous prime is 189735421. The next prime is 189735439. The reversal of 189735425 is 524537981.

It is not a de Polignac number, because 189735425 - 2² = 189735421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189735421) 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 23 ways as a sum of consecutive naturals, for example, 12932 + ... + 23381.

It is an arithmetic number, because the mean of its divisors is an integer number (11257340).

Almost surely, 2^189735425 is an apocalyptic number.

It is an amenable number.

189735425 is a deficient number, since it is larger than the sum of its proper divisors (80440735).

189735425 is a wasteful number, since it uses less digits than its factorization.

189735425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36353 (or 36348 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 189735425 is about 13774.4482648126. The cubic root of 189735425 is about 574.6227392988.

The spelling of 189735425 in words is "one hundred eighty-nine million, seven hundred thirty-five thousand, four hundred twenty-five".