919119144 has 32 divisors (see below), whose sum is σ = 2432963520. Its totient is φ = 288350976.

The previous prime is 919119143. The next prime is 919119191. The reversal of 919119144 is 441911919.

It is not an unprimeable number, because it can be changed into a prime (919119143) 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, 1125964 + ... + 1126779.

It is an arithmetic number, because the mean of its divisors is an integer number (76030110).

Almost surely, 2^919119144 is an apocalyptic number.

It is an amenable number.

919119144 is an abundant number, since it is smaller than the sum of its proper divisors (1513844376).

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

919119144 is a wasteful number, since it uses less digits than its factorization.

919119144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252769 (or 2252765 counting only the distinct ones).

The product of its digits is 11664, while the sum is 39.

The square root of 919119144 is about 30316.9778177179. The cubic root of 919119144 is about 972.2783246723.

The spelling of 919119144 in words is "nine hundred nineteen million, one hundred nineteen thousand, one hundred forty-four".