1016641 has 2 divisors, whose sum is σ = 1016642. Its totient is φ = 1016640.

The previous prime is 1016621. The next prime is 1016663. The reversal of 1016641 is 1466101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 16641 = 1000^2 + 129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016641 - 2¹¹ = 1014593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1016611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508320 + 508321.

It is an arithmetic number, because the mean of its divisors is an integer number (508321).

2^1016641 is an apocalyptic number.

It is an amenable number.

1016641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016641 is an equidigital number, since it uses as much as digits as its factorization.

1016641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1016641 is about 1008.2861696959. The cubic root of 1016641 is about 100.5516512135.

The spelling of 1016641 in words is "one million, sixteen thousand, six hundred forty-one".