188943225 has 24 divisors (see below), whose sum is σ = 315491712. Its totient is φ = 99768000.

The previous prime is 188943221. The next prime is 188943259. The reversal of 188943225 is 522349881.

188943225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 188943225 - 2² = 188943221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188943221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4897 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (13145488).

Almost surely, 2^188943225 is an apocalyptic number.

188943225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188943225 is a deficient number, since it is larger than the sum of its proper divisors (126548487).

188943225 is a wasteful number, since it uses less digits than its factorization.

188943225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25057 (or 25052 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 188943225 is about 13745.6620429865. The cubic root of 188943225 is about 573.8218852313.

The spelling of 188943225 in words is "one hundred eighty-eight million, nine hundred forty-three thousand, two hundred twenty-five".