11665141 has 8 divisors (see below), whose sum is σ = 12023640. Its totient is φ = 11311872.

The previous prime is 11665133. The next prime is 11665151. The reversal of 11665141 is 14156611.

It can be written as a sum of positive squares in 4 ways, for example, as 2387025 + 9278116 = 1545^2 + 3046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11665141 - 2³ = 11665133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3481 + ... + 5953.

It is an arithmetic number, because the mean of its divisors is an integer number (1502955).

Almost surely, 2^11665141 is an apocalyptic number.

It is an amenable number.

11665141 is a deficient number, since it is larger than the sum of its proper divisors (358499).

11665141 is an equidigital number, since it uses as much as digits as its factorization.

11665141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

The product of its digits is 720, while the sum is 25.

The square root of 11665141 is about 3415.4269132862. The cubic root of 11665141 is about 226.7931836469.

The spelling of 11665141 in words is "eleven million, six hundred sixty-five thousand, one hundred forty-one".