1009111092 has 48 divisors (see below), whose sum is σ = 2719749312. Its totient is φ = 287802880.

The previous prime is 1009111091. The next prime is 1009111121. The reversal of 1009111092 is 2901119001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009111091) 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 15 ways as a sum of consecutive naturals, for example, 222603 + ... + 227090.

It is an arithmetic number, because the mean of its divisors is an integer number (56661444).

Almost surely, 2^1009111092 is an apocalyptic number.

1009111092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1009111092 is an abundant number, since it is smaller than the sum of its proper divisors (1710638220).

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

1009111092 is a wasteful number, since it uses less digits than its factorization.

1009111092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449728 (or 449726 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 1009111092 is about 31766.5089677793. The cubic root of 1009111092 is about 1003.0278535167.

It can be divided in two parts, 1009 and 111092, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 1009111092 in words is "one billion, nine million, one hundred eleven thousand, ninety-two".