189893425 has 12 divisors (see below), whose sum is σ = 235883340. Its totient is φ = 151646720.

The previous prime is 189893413. The next prime is 189893443. The reversal of 189893425 is 524398981.

It can be written as a sum of positive squares in 6 ways, for example, as 5992704 + 183900721 = 2448^2 + 13561^2 .

It is not a de Polignac number, because 189893425 - 2²⁵ = 156338993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8421 + ... + 21229.

It is an arithmetic number, because the mean of its divisors is an integer number (19656945).

Almost surely, 2^189893425 is an apocalyptic number.

It is an amenable number.

189893425 is a deficient number, since it is larger than the sum of its proper divisors (45989915).

189893425 is a wasteful number, since it uses less digits than its factorization.

189893425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13412 (or 13407 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 189893425 is about 13780.1823282568. The cubic root of 189893425 is about 574.7821985439.

The spelling of 189893425 in words is "one hundred eighty-nine million, eight hundred ninety-three thousand, four hundred twenty-five".