60040081 has 2 divisors, whose sum is σ = 60040082. Its totient is φ = 60040080.

The previous prime is 60040067. The next prime is 60040153. The reversal of 60040081 is 18004006.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 6677056 = 7305^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 60040081 - 2⁵ = 60040049 is a prime.

It is a super-2 number, since 2×60040081² = 7209622652973122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60040021) 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, 30020040 + 30020041.

It is an arithmetic number, because the mean of its divisors is an integer number (30020041).

Almost surely, 2^60040081 is an apocalyptic number.

It is an amenable number.

60040081 is a deficient number, since it is larger than the sum of its proper divisors (1).

60040081 is an equidigital number, since it uses as much as digits as its factorization.

60040081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 60040081 is about 7748.5534779080. The cubic root of 60040081 is about 391.5739179408.

Adding to 60040081 its reverse (18004006), we get a palindrome (78044087).

The spelling of 60040081 in words is "sixty million, forty thousand, eighty-one".