188969085 has 32 divisors (see below), whose sum is σ = 337505280. Its totient is φ = 100315584.

The previous prime is 188969083. The next prime is 188969107. The reversal of 188969085 is 580969881.

It is not a de Polignac number, because 188969085 - 2¹ = 188969083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188969083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26967 + ... + 33243.

It is an arithmetic number, because the mean of its divisors is an integer number (10547040).

Almost surely, 2^188969085 is an apocalyptic number.

188969085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188969085 is a deficient number, since it is larger than the sum of its proper divisors (148536195).

188969085 is a wasteful number, since it uses less digits than its factorization.

188969085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514 (or 6508 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The square root of 188969085 is about 13746.6026712057. The cubic root of 188969085 is about 573.8480630369.

The spelling of 188969085 in words is "one hundred eighty-eight million, nine hundred sixty-nine thousand, eighty-five".