1165441 has 4 divisors (see below), whose sum is σ = 1226800. Its totient is φ = 1104084.

The previous prime is 1165421. The next prime is 1165447. The reversal of 1165441 is 1445611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1445611 = 83 ⋅17417.

It is a cyclic number.

It is not a de Polignac number, because 1165441 - 2¹⁵ = 1132673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30651 + ... + 30688.

It is an arithmetic number, because the mean of its divisors is an integer number (306700).

2^1165441 is an apocalyptic number.

It is an amenable number.

1165441 is a deficient number, since it is larger than the sum of its proper divisors (61359).

1165441 is an equidigital number, since it uses as much as digits as its factorization.

1165441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61358.

The product of its digits is 480, while the sum is 22.

The square root of 1165441 is about 1079.5559272219. Note that the first 3 decimals coincide. The cubic root of 1165441 is about 105.2357815605.

The spelling of 1165441 in words is "one million, one hundred sixty-five thousand, four hundred forty-one".