7161216 has 64 divisors (see below), whose sum is σ = 20159280. Its totient is φ = 2244608.

The previous prime is 7161197. The next prime is 7161223. The reversal of 7161216 is 6121617.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5980 + ... + 7076.

Almost surely, 2^7161216 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 7161216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10079640).

7161216 is an abundant number, since it is smaller than the sum of its proper divisors (12998064).

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

7161216 is a wasteful number, since it uses less digits than its factorization.

7161216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1119 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 7161216 is about 2676.0448426736. The cubic root of 7161216 is about 192.7505345343.

The spelling of 7161216 in words is "seven million, one hundred sixty-one thousand, two hundred sixteen".