1048661 has 2 divisors, whose sum is σ = 1048662. Its totient is φ = 1048660.

The previous prime is 1048633. The next prime is 1048681. The reversal of 1048661 is 1668401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020100 + 28561 = 1010^2 + 169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048661 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1048661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524330 + 524331.

It is an arithmetic number, because the mean of its divisors is an integer number (524331).

2^1048661 is an apocalyptic number.

It is an amenable number.

1048661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048661 is an equidigital number, since it uses as much as digits as its factorization.

1048661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1048661 is about 1024.0415030652. The cubic root of 1048661 is about 101.5964123911.

The spelling of 1048661 in words is "one million, forty-eight thousand, six hundred sixty-one".