1085641 has 4 divisors (see below), whose sum is σ = 1142800. Its totient is φ = 1028484.

The previous prime is 1085633. The next prime is 1085657. The reversal of 1085641 is 1465801.

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.

It is a cyclic number.

It is not a de Polignac number, because 1085641 - 2³ = 1085633 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1085611) 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, 28551 + ... + 28588.

It is an arithmetic number, because the mean of its divisors is an integer number (285700).

2^1085641 is an apocalyptic number.

It is an amenable number.

1085641 is a deficient number, since it is larger than the sum of its proper divisors (57159).

1085641 is an equidigital number, since it uses as much as digits as its factorization.

1085641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57158.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1085641 is about 1041.9409772151. The cubic root of 1085641 is about 102.7768758517.

It can be divided in two parts, 10856 and 41, that multiplied together give a triangular number (445096 = T₉₄₃).

The spelling of 1085641 in words is "one million, eighty-five thousand, six hundred forty-one".