9090512 has 40 divisors (see below), whose sum is σ = 19641600. Its totient is φ = 4050432.

The previous prime is 9090509. The next prime is 9090517. The reversal of 9090512 is 2150909.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (491040).

Almost surely, 2^9090512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9090512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9820800).

9090512 is an abundant number, since it is smaller than the sum of its proper divisors (10551088).

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

9090512 is a wasteful number, since it uses less digits than its factorization.

9090512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 9090512 is about 3015.0475949809. The cubic root of 9090512 is about 208.7033634329.

The spelling of 9090512 in words is "nine million, ninety thousand, five hundred twelve".