189441225 has 36 divisors (see below), whose sum is σ = 354072576. Its totient is φ = 96639840.

The previous prime is 189441211. The next prime is 189441233. The reversal of 189441225 is 522144981.

It is not a de Polignac number, because 189441225 - 2¹⁰ = 189440201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189441225.

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 35 ways as a sum of consecutive naturals, for example, 13129 + ... + 23478.

Almost surely, 2^189441225 is an apocalyptic number.

189441225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189441225 is a deficient number, since it is larger than the sum of its proper divisors (164631351).

189441225 is a wasteful number, since it uses less digits than its factorization.

189441225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36646 (or 36638 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 189441225 is about 13763.7649282455. The cubic root of 189441225 is about 574.3255861050.

The spelling of 189441225 in words is "one hundred eighty-nine million, four hundred forty-one thousand, two hundred twenty-five".