189848138 has 8 divisors (see below), whose sum is σ = 284832288. Its totient is φ = 94904044.

The previous prime is 189848137. The next prime is 189848149. The reversal of 189848138 is 831848981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (189848137) 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 3 ways as a sum of consecutive naturals, for example, 9245 + ... + 21567.

It is an arithmetic number, because the mean of its divisors is an integer number (35604036).

Almost surely, 2^189848138 is an apocalyptic number.

189848138 is a deficient number, since it is larger than the sum of its proper divisors (94984150).

189848138 is a wasteful number, since it uses less digits than its factorization.

189848138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20028.

The product of its digits is 442368, while the sum is 50.

The square root of 189848138 is about 13778.5390372129. The cubic root of 189848138 is about 574.7365023312.

The spelling of 189848138 in words is "one hundred eighty-nine million, eight hundred forty-eight thousand, one hundred thirty-eight".