189455108 has 24 divisors (see below), whose sum is σ = 335657952. Its totient is φ = 93560384.

The previous prime is 189455107. The next prime is 189455111. The reversal of 189455108 is 801554981.

It is not an unprimeable number, because it can be changed into a prime (189455107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 123635 + ... + 125157.

It is an arithmetic number, because the mean of its divisors is an integer number (13985748).

Almost surely, 2^189455108 is an apocalyptic number.

It is an amenable number.

189455108 is a deficient number, since it is larger than the sum of its proper divisors (146202844).

189455108 is a wasteful number, since it uses less digits than its factorization.

189455108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 189455108 is about 13764.2692504906. The cubic root of 189455108 is about 574.3396153769.

The spelling of 189455108 in words is "one hundred eighty-nine million, four hundred fifty-five thousand, one hundred eight".