1011641 has 2 divisors, whose sum is σ = 1011642. Its totient is φ = 1011640.

The previous prime is 1011631. The next prime is 1011649. The reversal of 1011641 is 1461101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 246016 = 875^2 + 496^2 .

It is an emirp because it is prime and its reverse (1461101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011641 - 2¹⁰ = 1010617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1011649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505820 + 505821.

It is an arithmetic number, because the mean of its divisors is an integer number (505821).

2^1011641 is an apocalyptic number.

It is an amenable number.

1011641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011641 is an equidigital number, since it uses as much as digits as its factorization.

1011641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1011641 is about 1005.8036587724. The cubic root of 1011641 is about 100.3865372974.

Adding to 1011641 its reverse (1461101), we get a palindrome (2472742).

The spelling of 1011641 in words is "one million, eleven thousand, six hundred forty-one".