1041581 has 4 divisors (see below), whose sum is σ = 1049664. Its totient is φ = 1033500.

The previous prime is 1041577. The next prime is 1041583. The reversal of 1041581 is 1851401.

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 1041581 - 2² = 1041577 is a prime.

It is a super-2 number, since 2×1041581² = 2169781959122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845 + ... + 4106.

It is an arithmetic number, because the mean of its divisors is an integer number (262416).

2^1041581 is an apocalyptic number.

It is an amenable number.

1041581 is a deficient number, since it is larger than the sum of its proper divisors (8083).

1041581 is an equidigital number, since it uses as much as digits as its factorization.

1041581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8082.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1041581 is about 1020.5787573725. The cubic root of 1041581 is about 101.3672542929.

Adding to 1041581 its reverse (1851401), we get a palindrome (2892982).

The spelling of 1041581 in words is "one million, forty-one thousand, five hundred eighty-one".