9141872 has 20 divisors (see below), whose sum is σ = 17759280. Its totient is φ = 4558848.

The previous prime is 9141871. The next prime is 9141883. The reversal of 9141872 is 2781419.

It is the 57-th Perrin number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9141871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11504 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (887964).

Almost surely, 2^9141872 is an apocalyptic number.

It is an amenable number.

9141872 is a deficient number, since it is larger than the sum of its proper divisors (8617408).

9141872 is a wasteful number, since it uses less digits than its factorization.

9141872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1514 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 9141872 is about 3023.5528769975. The cubic root of 9141872 is about 209.0956728708.

The spelling of 9141872 in words is "nine million, one hundred forty-one thousand, eight hundred seventy-two".