981061 has 2 divisors, whose sum is σ = 981062. Its totient is φ = 981060.

The previous prime is 981049. The next prime is 981067. The reversal of 981061 is 160189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 961 = 990^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 981061 - 2⁹ = 980549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981067) 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, 490530 + 490531.

It is an arithmetic number, because the mean of its divisors is an integer number (490531).

2⁹⁸¹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

981061 is a deficient number, since it is larger than the sum of its proper divisors (1).

981061 is an equidigital number, since it uses as much as digits as its factorization.

981061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 981061 is about 990.4852346199. The cubic root of 981061 is about 99.3646721332.

The spelling of 981061 in words is "nine hundred eighty-one thousand, sixty-one".