90150912 has 144 divisors (see below), whose sum is σ = 267878520. Its totient is φ = 29196288.

The previous prime is 90150889. The next prime is 90150959. The reversal of 90150912 is 21905109.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1234908 + ... + 1234980.

Almost surely, 2^90150912 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 90150912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133939260).

90150912 is an abundant number, since it is smaller than the sum of its proper divisors (177727608).

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

90150912 is a wasteful number, since it uses less digits than its factorization.

90150912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 90150912 is about 9494.7834098520. The cubic root of 90150912 is about 448.3908154333.

The spelling of 90150912 in words is "ninety million, one hundred fifty thousand, nine hundred twelve".