1000541 has 2 divisors, whose sum is σ = 1000542. Its totient is φ = 1000540.

The previous prime is 1000537. The next prime is 1000547. The reversal of 1000541 is 1450001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 894916 + 105625 = 946^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000541 - 2² = 1000537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000547) 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 as a sum of consecutive naturals, namely, 500270 + 500271.

It is an arithmetic number, because the mean of its divisors is an integer number (500271).

2^1000541 is an apocalyptic number.

It is an amenable number.

1000541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000541 is an equidigital number, since it uses as much as digits as its factorization.

1000541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1000541 is about 1000.2704634248. The cubic root of 1000541 is about 100.0180300823.

Adding to 1000541 its reverse (1450001), we get a palindrome (2450542).

The spelling of 1000541 in words is "one million, five hundred forty-one", and thus it is an aban number.