9142216 has 8 divisors (see below), whose sum is σ = 17141670. Its totient is φ = 4571104.

The previous prime is 9142207. The next prime is 9142229. The reversal of 9142216 is 6122419.

It can be written as a sum of positive squares in only one way, i.e., 4605316 + 4536900 = 2146^2 + 2130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×9142216² = 167160226781312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571381 + ... + 571396.

Almost surely, 2^9142216 is an apocalyptic number.

It is an amenable number.

9142216 is a deficient number, since it is larger than the sum of its proper divisors (7999454).

9142216 is a wasteful number, since it uses less digits than its factorization.

9142216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142783 (or 1142779 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 9142216 is about 3023.6097631804. The cubic root of 9142216 is about 209.0982955287.

The spelling of 9142216 in words is "nine million, one hundred forty-two thousand, two hundred sixteen".