9111641 has 16 divisors (see below), whose sum is σ = 11522688. Its totient is φ = 6998400.

The previous prime is 9111629. The next prime is 9111649. The reversal of 9111641 is 1461119.

It is a cyclic number.

It is not a de Polignac number, because 9111641 - 2¹⁰ = 9110617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9111649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4811 + ... + 6431.

It is an arithmetic number, because the mean of its divisors is an integer number (720168).

Almost surely, 2^9111641 is an apocalyptic number.

It is an amenable number.

9111641 is a deficient number, since it is larger than the sum of its proper divisors (2411047).

9111641 is a wasteful number, since it uses less digits than its factorization.

9111641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its digits is 216, while the sum is 23.

The square root of 9111641 is about 3018.5494860943. The cubic root of 9111641 is about 208.8649341379.

It can be divided in two parts, 911 and 1641, that added together give a palindrome (2552).

The spelling of 9111641 in words is "nine million, one hundred eleven thousand, six hundred forty-one".