9161272 has 24 divisors (see below), whose sum is σ = 17557560. Its totient is φ = 4480560.

The previous prime is 9161263. The next prime is 9161293. The reversal of 9161272 is 2721619.

It is a happy number.

9161272 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9161272.

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 5 ways as a sum of consecutive naturals, for example, 72073 + ... + 72199.

It is an arithmetic number, because the mean of its divisors is an integer number (731565).

Almost surely, 2^9161272 is an apocalyptic number.

It is an amenable number.

9161272 is a deficient number, since it is larger than the sum of its proper divisors (8396288).

9161272 is a wasteful number, since it uses less digits than its factorization.

9161272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 200 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 9161272 is about 3026.7593231045. The cubic root of 9161272 is about 209.2434759329.

The spelling of 9161272 in words is "nine million, one hundred sixty-one thousand, two hundred seventy-two".