1009789148 has 18 divisors (see below), whose sum is σ = 1844519544. Its totient is φ = 482796864.

The previous prime is 1009789111. The next prime is 1009789153. The reversal of 1009789148 is 8419879001.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 303140 + ... + 306452.

It is an arithmetic number, because the mean of its divisors is an integer number (102473308).

Almost surely, 2^1009789148 is an apocalyptic number.

It is an amenable number.

1009789148 is a deficient number, since it is larger than the sum of its proper divisors (834730396).

1009789148 is an frugal number, since it uses more digits than its factorization.

1009789148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 1009789148 is about 31777.1796734701. The cubic root of 1009789148 is about 1003.2524593727.

The spelling of 1009789148 in words is "one billion, nine million, seven hundred eighty-nine thousand, one hundred forty-eight".