1009145918 has 16 divisors (see below), whose sum is σ = 1695961584. Its totient is φ = 446304960.

The previous prime is 1009145911. The next prime is 1009145927. The reversal of 1009145918 is 8195419001.

1009145918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009145911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619055 + ... + 620682.

It is an arithmetic number, because the mean of its divisors is an integer number (105997599).

Almost surely, 2^1009145918 is an apocalyptic number.

1009145918 is a deficient number, since it is larger than the sum of its proper divisors (686815666).

1009145918 is a wasteful number, since it uses less digits than its factorization.

1009145918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239787.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 1009145918 is about 31767.0571189715. The cubic root of 1009145918 is about 1003.0393920700.

The spelling of 1009145918 in words is "one billion, nine million, one hundred forty-five thousand, nine hundred eighteen".