11641043 has 4 divisors (see below), whose sum is σ = 11718288. Its totient is φ = 11563800.

The previous prime is 11641037. The next prime is 11641087. The reversal of 11641043 is 34014611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34014611 = 197 ⋅172663.

It is a cyclic number.

It is not a de Polignac number, because 11641043 - 2¹⁶ = 11575507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11641033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38396 + ... + 38697.

It is an arithmetic number, because the mean of its divisors is an integer number (2929572).

Almost surely, 2^11641043 is an apocalyptic number.

11641043 is a deficient number, since it is larger than the sum of its proper divisors (77245).

11641043 is an equidigital number, since it uses as much as digits as its factorization.

11641043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77244.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 11641043 is about 3411.8972727795. The cubic root of 11641043 is about 226.6369052140.

Adding to 11641043 its reverse (34014611), we get a palindrome (45655654).

The spelling of 11641043 in words is "eleven million, six hundred forty-one thousand, forty-three".