90011112 has 32 divisors (see below), whose sum is σ = 228720480. Its totient is φ = 29511360.

The previous prime is 90011111. The next prime is 90011149. The reversal of 90011112 is 21111009.

It is a junction number, because it is equal to n+sod(n) for n = 90011091 and 90011100.

It is not an unprimeable number, because it can be changed into a prime (90011111) 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, 29278 + ... + 32205.

It is an arithmetic number, because the mean of its divisors is an integer number (7147515).

Almost surely, 2^90011112 is an apocalyptic number.

It is an amenable number.

90011112 is an abundant number, since it is smaller than the sum of its proper divisors (138709368).

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

90011112 is a wasteful number, since it uses less digits than its factorization.

90011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61553 (or 61549 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 90011112 is about 9487.4186162517. The cubic root of 90011112 is about 448.1589173669.

The spelling of 90011112 in words is "ninety million, eleven thousand, one hundred twelve".