7165641 has 16 divisors (see below), whose sum is σ = 11494400. Its totient is φ = 3878928.

The previous prime is 7165633. The next prime is 7165661. The reversal of 7165641 is 1465617.

It is not a de Polignac number, because 7165641 - 2³ = 7165633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7165599 and 7165608.

It is not an unprimeable number, because it can be changed into a prime (7165601) 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 15 ways as a sum of consecutive naturals, for example, 8581 + ... + 9378.

It is an arithmetic number, because the mean of its divisors is an integer number (718400).

Almost surely, 2^7165641 is an apocalyptic number.

It is an amenable number.

7165641 is a deficient number, since it is larger than the sum of its proper divisors (4328759).

7165641 is a wasteful number, since it uses less digits than its factorization.

7165641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988.

The product of its digits is 5040, while the sum is 30.

The square root of 7165641 is about 2676.8714948611. The cubic root of 7165641 is about 192.7902273043.

The spelling of 7165641 in words is "seven million, one hundred sixty-five thousand, six hundred forty-one".