7041581 has 4 divisors (see below), whose sum is σ = 7231932. Its totient is φ = 6851232.

The previous prime is 7041569. The next prime is 7041623. The reversal of 7041581 is 1851407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2920681 + 4120900 = 1709^2 + 2030^2 .

It is a cyclic number.

It is not a de Polignac number, because 7041581 - 2¹⁰ = 7040557 is a prime.

It is a super-2 number, since 2×7041581² = 99167725959122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7041581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7041781) 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, 95120 + ... + 95193.

It is an arithmetic number, because the mean of its divisors is an integer number (1807983).

Almost surely, 2^7041581 is an apocalyptic number.

It is an amenable number.

7041581 is a deficient number, since it is larger than the sum of its proper divisors (190351).

7041581 is a wasteful number, since it uses less digits than its factorization.

7041581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190350.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 7041581 is about 2653.5977464567. The cubic root of 7041581 is about 191.6711402443.

Adding to 7041581 its reverse (1851407), we get a palindrome (8892988).

The spelling of 7041581 in words is "seven million, forty-one thousand, five hundred eighty-one".