919110138 has 8 divisors (see below), whose sum is σ = 1838220288. Its totient is φ = 306370044.

The previous prime is 919110133. The next prime is 919110149. The reversal of 919110138 is 831011919.

It is a happy number.

919110138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

919110138 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 919110099 and 919110108.

It is not an unprimeable number, because it can be changed into a prime (919110131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76592506 + ... + 76592517.

It is an arithmetic number, because the mean of its divisors is an integer number (229777536).

Almost surely, 2^919110138 is an apocalyptic number.

919110138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

919110138 is a wasteful number, since it uses less digits than its factorization.

919110138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153185028.

The product of its (nonzero) digits is 1944, while the sum is 33.

The square root of 919110138 is about 30316.8292867180. The cubic root of 919110138 is about 972.2751490350.

The spelling of 919110138 in words is "nine hundred nineteen million, one hundred ten thousand, one hundred thirty-eight".