60821161 has 2 divisors, whose sum is σ = 60821162. Its totient is φ = 60821160.

The previous prime is 60821141. The next prime is 60821171. The reversal of 60821161 is 16112806.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 30085225 = 5544^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 60821161 - 2¹⁷ = 60690089 is a prime.

It is equal to p_3608017 and since 60821161 and 3608017 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (60821141) 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, 30410580 + 30410581.

It is an arithmetic number, because the mean of its divisors is an integer number (30410581).

Almost surely, 2^60821161 is an apocalyptic number.

It is an amenable number.

60821161 is a deficient number, since it is larger than the sum of its proper divisors (1).

60821161 is an equidigital number, since it uses as much as digits as its factorization.

60821161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 60821161 is about 7798.7922782954. The cubic root of 60821161 is about 393.2646427177.

Adding to 60821161 its reverse (16112806), we get a palindrome (76933967).

The spelling of 60821161 in words is "sixty million, eight hundred twenty-one thousand, one hundred sixty-one".