9013212 has 36 divisors (see below), whose sum is σ = 24537240. Its totient is φ = 2773152.

The previous prime is 9013129. The next prime is 9013223. The reversal of 9013212 is 2123109.

It is a happy number.

9013212 is digitally balanced in base 2, base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×9013212⁴ (a number of 29 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9162 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (681590).

Almost surely, 2^9013212 is an apocalyptic number.

It is an amenable number.

9013212 is an abundant number, since it is smaller than the sum of its proper divisors (15524028).

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

9013212 is a wasteful number, since it uses less digits than its factorization.

9013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19282 (or 19277 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 9013212 is about 3002.2011924586. The cubic root of 9013212 is about 208.1101179738.

The spelling of 9013212 in words is "nine million, thirteen thousand, two hundred twelve".